Home / 1,296,434,431.34-1,789,079,602.74-709,723,567.34

Finding the Fourth Proportional to 1,296,434,431.34, 1,789,079,602.74 and 709,723,567.34

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Solution

The fourth proportional to 1,296,434,431.34, 1,789,079,602.74 and 709,723,567.34 is: 979,418,570.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,434,431.34 : 1,789,079,602.74 = 709,723,567.34 : x
  2. Step 2: Convert to fraction form
    1,296,434,431.34/1,789,079,602.74 = 709,723,567.34/x
  3. Step 3: Cross multiply
    1,296,434,431.34x = 1,789,079,602.74 × 709,723,567.34
  4. Step 4: Simplify right side
    1,296,434,431.34x = 1,269,751,957,911,862,784
  5. Step 5: Solve for x
    x = 1,269,751,957,911,862,784/1,296,434,431.34
  6. Step 6: Final answer
    x = 979,418,570.83

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Half scale
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Double scale
Find fourth proportional to 1,296,434,432.34, 1,789,079,604.12 and 709,723,568.34
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.