Home / 757,516.56-1,046,877.48-621,338.64

Finding the Fourth Proportional to 757,516.56, 1,046,877.48 and 621,338.64

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Solution

The fourth proportional to 757,516.56, 1,046,877.48 and 621,338.64 is: 858,681.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,516.56 : 1,046,877.48 = 621,338.64 : x
  2. Step 2: Convert to fraction form
    757,516.56/1,046,877.48 = 621,338.64/x
  3. Step 3: Cross multiply
    757,516.56x = 1,046,877.48 × 621,338.64
  4. Step 4: Simplify right side
    757,516.56x = 650,465,429,669.83
  5. Step 5: Solve for x
    x = 650,465,429,669.83/757,516.56
  6. Step 6: Final answer
    x = 858,681.47

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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.