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Finding the Fourth Proportional to 624,405.60, 861,681.96 and 337,925.64

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Solution

The fourth proportional to 624,405.60, 861,681.96 and 337,925.64 is: 466,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,405.60 : 861,681.96 = 337,925.64 : x
  2. Step 2: Convert to fraction form
    624,405.60/861,681.96 = 337,925.64/x
  3. Step 3: Cross multiply
    624,405.60x = 861,681.96 × 337,925.64
  4. Step 4: Simplify right side
    624,405.60x = 291,184,427,809.45
  5. Step 5: Solve for x
    x = 291,184,427,809.45/624,405.60
  6. Step 6: Final answer
    x = 466,338.59

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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.