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Finding the Fourth Proportional to 478,084.79, 717,203.31 and 158,248.34

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Solution

The fourth proportional to 478,084.79, 717,203.31 and 158,248.34 is: 237,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,084.79 : 717,203.31 = 158,248.34 : x
  2. Step 2: Convert to fraction form
    478,084.79/717,203.31 = 158,248.34/x
  3. Step 3: Cross multiply
    478,084.79x = 717,203.31 × 158,248.34
  4. Step 4: Simplify right side
    478,084.79x = 113,496,228,872.75
  5. Step 5: Solve for x
    x = 113,496,228,872.75/478,084.79
  6. Step 6: Final answer
    x = 237,397.70

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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.