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Finding the Fourth Proportional to 256,449.36, 353,899.44 and 147,565.92

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Solution

The fourth proportional to 256,449.36, 353,899.44 and 147,565.92 is: 203,640.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,449.36 : 353,899.44 = 147,565.92 : x
  2. Step 2: Convert to fraction form
    256,449.36/353,899.44 = 147,565.92/x
  3. Step 3: Cross multiply
    256,449.36x = 353,899.44 × 147,565.92
  4. Step 4: Simplify right side
    256,449.36x = 52,223,496,451.08
  5. Step 5: Solve for x
    x = 52,223,496,451.08/256,449.36
  6. Step 6: Final answer
    x = 203,640.58

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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.