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Finding the Fourth Proportional to 506,314.20, 759,471.30 and 206,695.20

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Solution

The fourth proportional to 506,314.20, 759,471.30 and 206,695.20 is: 310,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,314.20 : 759,471.30 = 206,695.20 : x
  2. Step 2: Convert to fraction form
    506,314.20/759,471.30 = 206,695.20/x
  3. Step 3: Cross multiply
    506,314.20x = 759,471.30 × 206,695.20
  4. Step 4: Simplify right side
    506,314.20x = 156,979,072,247.76
  5. Step 5: Solve for x
    x = 156,979,072,247.76/506,314.20
  6. Step 6: Final answer
    x = 310,042.80

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Double scale
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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.