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Finding the Fourth Proportional to 402,906.60, 604,294.17 and 118,530.62

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Solution

The fourth proportional to 402,906.60, 604,294.17 and 118,530.62 is: 177,776.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,906.60 : 604,294.17 = 118,530.62 : x
  2. Step 2: Convert to fraction form
    402,906.60/604,294.17 = 118,530.62/x
  3. Step 3: Cross multiply
    402,906.60x = 604,294.17 × 118,530.62
  4. Step 4: Simplify right side
    402,906.60x = 71,627,359,018.36
  5. Step 5: Solve for x
    x = 71,627,359,018.36/402,906.60
  6. Step 6: Final answer
    x = 177,776.59

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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.