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Finding the Fourth Proportional to 713,876.72, 985,147.20 and 441,890.46

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Solution

The fourth proportional to 713,876.72, 985,147.20 and 441,890.46 is: 609,807.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,876.72 : 985,147.20 = 441,890.46 : x
  2. Step 2: Convert to fraction form
    713,876.72/985,147.20 = 441,890.46/x
  3. Step 3: Cross multiply
    713,876.72x = 985,147.20 × 441,890.46
  4. Step 4: Simplify right side
    713,876.72x = 435,327,149,375.71
  5. Step 5: Solve for x
    x = 435,327,149,375.71/713,876.72
  6. Step 6: Final answer
    x = 609,807.18

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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.