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Finding the Fourth Proportional to 577,419.40, 866,129.10 and 156,747.40

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Solution

The fourth proportional to 577,419.40, 866,129.10 and 156,747.40 is: 235,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,419.40 : 866,129.10 = 156,747.40 : x
  2. Step 2: Convert to fraction form
    577,419.40/866,129.10 = 156,747.40/x
  3. Step 3: Cross multiply
    577,419.40x = 866,129.10 × 156,747.40
  4. Step 4: Simplify right side
    577,419.40x = 135,763,484,489.34
  5. Step 5: Solve for x
    x = 135,763,484,489.34/577,419.40
  6. Step 6: Final answer
    x = 235,121.10

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.