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Finding the Fourth Proportional to 624,369, 861,631.80 and 337,889.04

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Solution

The fourth proportional to 624,369, 861,631.80 and 337,889.04 is: 466,288.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,369 : 861,631.80 = 337,889.04 : x
  2. Step 2: Convert to fraction form
    624,369/861,631.80 = 337,889.04/x
  3. Step 3: Cross multiply
    624,369x = 861,631.80 × 337,889.04
  4. Step 4: Simplify right side
    624,369x = 291,135,941,735.47
  5. Step 5: Solve for x
    x = 291,135,941,735.47/624,369
  6. Step 6: Final answer
    x = 466,288.27

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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.