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Finding the Fourth Proportional to 308,291.32, 425,454.42 and 179,229.16

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Solution

The fourth proportional to 308,291.32, 425,454.42 and 179,229.16 is: 247,343.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,291.32 : 425,454.42 = 179,229.16 : x
  2. Step 2: Convert to fraction form
    308,291.32/425,454.42 = 179,229.16/x
  3. Step 3: Cross multiply
    308,291.32x = 425,454.42 × 179,229.16
  4. Step 4: Simplify right side
    308,291.32x = 76,253,838,314.89
  5. Step 5: Solve for x
    x = 76,253,838,314.89/308,291.32
  6. Step 6: Final answer
    x = 247,343.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.