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Finding the Fourth Proportional to 607,517.20, 911,931.90 and 341,796.70

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Solution

The fourth proportional to 607,517.20, 911,931.90 and 341,796.70 is: 513,064.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,517.20 : 911,931.90 = 341,796.70 : x
  2. Step 2: Convert to fraction form
    607,517.20/911,931.90 = 341,796.70/x
  3. Step 3: Cross multiply
    607,517.20x = 911,931.90 × 341,796.70
  4. Step 4: Simplify right side
    607,517.20x = 311,695,314,044.73
  5. Step 5: Solve for x
    x = 311,695,314,044.73/607,517.20
  6. Step 6: Final answer
    x = 513,064.18

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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.