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Finding the Fourth Proportional to 539,693.01, 744,757.07 and 297,970.65

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Solution

The fourth proportional to 539,693.01, 744,757.07 and 297,970.65 is: 411,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,693.01 : 744,757.07 = 297,970.65 : x
  2. Step 2: Convert to fraction form
    539,693.01/744,757.07 = 297,970.65/x
  3. Step 3: Cross multiply
    539,693.01x = 744,757.07 × 297,970.65
  4. Step 4: Simplify right side
    539,693.01x = 221,915,746,750.14
  5. Step 5: Solve for x
    x = 221,915,746,750.14/539,693.01
  6. Step 6: Final answer
    x = 411,188.85

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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.