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Finding the Fourth Proportional to 308,445.08, 425,655.34 and 179,414.51

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Solution

The fourth proportional to 308,445.08, 425,655.34 and 179,414.51 is: 247,592.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,445.08 : 425,655.34 = 179,414.51 : x
  2. Step 2: Convert to fraction form
    308,445.08/425,655.34 = 179,414.51/x
  3. Step 3: Cross multiply
    308,445.08x = 425,655.34 × 179,414.51
  4. Step 4: Simplify right side
    308,445.08x = 76,368,741,678.17
  5. Step 5: Solve for x
    x = 76,368,741,678.17/308,445.08
  6. Step 6: Final answer
    x = 247,592.68

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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.