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Finding the Fourth Proportional to 399,346.73, 599,309.13 and 156,223.66

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Solution

The fourth proportional to 399,346.73, 599,309.13 and 156,223.66 is: 234,448.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,346.73 : 599,309.13 = 156,223.66 : x
  2. Step 2: Convert to fraction form
    399,346.73/599,309.13 = 156,223.66/x
  3. Step 3: Cross multiply
    399,346.73x = 599,309.13 × 156,223.66
  4. Step 4: Simplify right side
    399,346.73x = 93,626,265,760.02
  5. Step 5: Solve for x
    x = 93,626,265,760.02/399,346.73
  6. Step 6: Final answer
    x = 234,448.56

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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.