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Finding the Fourth Proportional to 624,393.60, 861,665.40 and 337,913.64

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Solution

The fourth proportional to 624,393.60, 861,665.40 and 337,913.64 is: 466,322.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,393.60 : 861,665.40 = 337,913.64 : x
  2. Step 2: Convert to fraction form
    624,393.60/861,665.40 = 337,913.64/x
  3. Step 3: Cross multiply
    624,393.60x = 861,665.40 × 337,913.64
  4. Step 4: Simplify right side
    624,393.60x = 291,168,491,776.06
  5. Step 5: Solve for x
    x = 291,168,491,776.06/624,393.60
  6. Step 6: Final answer
    x = 466,322.03

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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.