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Finding the Fourth Proportional to 1,168,905.90, 1,753,358.85 and 932,709.90

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Solution

The fourth proportional to 1,168,905.90, 1,753,358.85 and 932,709.90 is: 1,399,064.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,905.90 : 1,753,358.85 = 932,709.90 : x
  2. Step 2: Convert to fraction form
    1,168,905.90/1,753,358.85 = 932,709.90/x
  3. Step 3: Cross multiply
    1,168,905.90x = 1,753,358.85 × 932,709.90
  4. Step 4: Simplify right side
    1,168,905.90x = 1,635,375,157,647.62
  5. Step 5: Solve for x
    x = 1,635,375,157,647.62/1,168,905.90
  6. Step 6: Final answer
    x = 1,399,064.85

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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.