Home / 1,274,429.85-1,911,649.78-516,285.64

Finding the Fourth Proportional to 1,274,429.85, 1,911,649.78 and 516,285.64

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Solution

The fourth proportional to 1,274,429.85, 1,911,649.78 and 516,285.64 is: 774,430.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,429.85 : 1,911,649.78 = 516,285.64 : x
  2. Step 2: Convert to fraction form
    1,274,429.85/1,911,649.78 = 516,285.64/x
  3. Step 3: Cross multiply
    1,274,429.85x = 1,911,649.78 × 516,285.64
  4. Step 4: Simplify right side
    1,274,429.85x = 986,957,333,158.08
  5. Step 5: Solve for x
    x = 986,957,333,158.08/1,274,429.85
  6. Step 6: Final answer
    x = 774,430.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.