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Finding the Fourth Proportional to 295,990.32, 408,471.12 and 168,663.20

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Solution

The fourth proportional to 295,990.32, 408,471.12 and 168,663.20 is: 232,757.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,990.32 : 408,471.12 = 168,663.20 : x
  2. Step 2: Convert to fraction form
    295,990.32/408,471.12 = 168,663.20/x
  3. Step 3: Cross multiply
    295,990.32x = 408,471.12 × 168,663.20
  4. Step 4: Simplify right side
    295,990.32x = 68,894,046,206.78
  5. Step 5: Solve for x
    x = 68,894,046,206.78/295,990.32
  6. Step 6: Final answer
    x = 232,757.77

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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.