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Finding the Fourth Proportional to 539,187.90, 744,074.16 and 297,472.42

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Solution

The fourth proportional to 539,187.90, 744,074.16 and 297,472.42 is: 410,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,187.90 : 744,074.16 = 297,472.42 : x
  2. Step 2: Convert to fraction form
    539,187.90/744,074.16 = 297,472.42/x
  3. Step 3: Cross multiply
    539,187.90x = 744,074.16 × 297,472.42
  4. Step 4: Simplify right side
    539,187.90x = 221,341,541,034.67
  5. Step 5: Solve for x
    x = 221,341,541,034.67/539,187.90
  6. Step 6: Final answer
    x = 410,509.10

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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.