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Finding the Fourth Proportional to 539,614.52, 744,648.46 and 297,891.88

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Solution

The fourth proportional to 539,614.52, 744,648.46 and 297,891.88 is: 411,079.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,614.52 : 744,648.46 = 297,891.88 : x
  2. Step 2: Convert to fraction form
    539,614.52/744,648.46 = 297,891.88/x
  3. Step 3: Cross multiply
    539,614.52x = 744,648.46 × 297,891.88
  4. Step 4: Simplify right side
    539,614.52x = 221,824,729,688.51
  5. Step 5: Solve for x
    x = 221,824,729,688.51/539,614.52
  6. Step 6: Final answer
    x = 411,079.99

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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.