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Finding the Fourth Proportional to 521,684.08, 782,526.12 and 147,710.32

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Solution

The fourth proportional to 521,684.08, 782,526.12 and 147,710.32 is: 221,565.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,684.08 : 782,526.12 = 147,710.32 : x
  2. Step 2: Convert to fraction form
    521,684.08/782,526.12 = 147,710.32/x
  3. Step 3: Cross multiply
    521,684.08x = 782,526.12 × 147,710.32
  4. Step 4: Simplify right side
    521,684.08x = 115,587,183,593.56
  5. Step 5: Solve for x
    x = 115,587,183,593.56/521,684.08
  6. Step 6: Final answer
    x = 221,565.48

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Similar ratio
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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.