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Finding the Fourth Proportional to 616,138.60, 924,207.90 and 172,906.60

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Solution

The fourth proportional to 616,138.60, 924,207.90 and 172,906.60 is: 259,359.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,138.60 : 924,207.90 = 172,906.60 : x
  2. Step 2: Convert to fraction form
    616,138.60/924,207.90 = 172,906.60/x
  3. Step 3: Cross multiply
    616,138.60x = 924,207.90 × 172,906.60
  4. Step 4: Simplify right side
    616,138.60x = 159,801,645,682.14
  5. Step 5: Solve for x
    x = 159,801,645,682.14/616,138.60
  6. Step 6: Final answer
    x = 259,359.90

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1.5x scale

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.