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Finding the Fourth Proportional to 653,539.59, 979,474.28 and 527,239.40

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Solution

The fourth proportional to 653,539.59, 979,474.28 and 527,239.40 is: 790,185.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,539.59 : 979,474.28 = 527,239.40 : x
  2. Step 2: Convert to fraction form
    653,539.59/979,474.28 = 527,239.40/x
  3. Step 3: Cross multiply
    653,539.59x = 979,474.28 × 527,239.40
  4. Step 4: Simplify right side
    653,539.59x = 516,417,424,169.06
  5. Step 5: Solve for x
    x = 516,417,424,169.06/653,539.59
  6. Step 6: Final answer
    x = 790,185.37

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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.