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Finding the Fourth Proportional to 478,003.67, 717,025.29 and 141,044.32

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Solution

The fourth proportional to 478,003.67, 717,025.29 and 141,044.32 is: 211,572.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,003.67 : 717,025.29 = 141,044.32 : x
  2. Step 2: Convert to fraction form
    478,003.67/717,025.29 = 141,044.32/x
  3. Step 3: Cross multiply
    478,003.67x = 717,025.29 × 141,044.32
  4. Step 4: Simplify right side
    478,003.67x = 101,132,344,450.85
  5. Step 5: Solve for x
    x = 101,132,344,450.85/478,003.67
  6. Step 6: Final answer
    x = 211,572.32

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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.