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Finding the Fourth Proportional to 624,421.60, 861,704.04 and 337,941.64

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Solution

The fourth proportional to 624,421.60, 861,704.04 and 337,941.64 is: 466,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,421.60 : 861,704.04 = 337,941.64 : x
  2. Step 2: Convert to fraction form
    624,421.60/861,704.04 = 337,941.64/x
  3. Step 3: Cross multiply
    624,421.60x = 861,704.04 × 337,941.64
  4. Step 4: Simplify right side
    624,421.60x = 291,205,676,472.23
  5. Step 5: Solve for x
    x = 291,205,676,472.23/624,421.60
  6. Step 6: Final answer
    x = 466,360.67

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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.