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Finding the Fourth Proportional to 539,561.70, 744,586.16 and 297,838.02

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Solution

The fourth proportional to 539,561.70, 744,586.16 and 297,838.02 is: 411,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,561.70 : 744,586.16 = 297,838.02 : x
  2. Step 2: Convert to fraction form
    539,561.70/744,586.16 = 297,838.02/x
  3. Step 3: Cross multiply
    539,561.70x = 744,586.16 × 297,838.02
  4. Step 4: Simplify right side
    539,561.70x = 221,766,067,613.80
  5. Step 5: Solve for x
    x = 221,766,067,613.80/539,561.70
  6. Step 6: Final answer
    x = 411,011.51

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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.