Home / 781,528.92-1,172,036.34-275,998.20

Finding the Fourth Proportional to 781,528.92, 1,172,036.34 and 275,998.20

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Solution

The fourth proportional to 781,528.92, 1,172,036.34 and 275,998.20 is: 413,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,528.92 : 1,172,036.34 = 275,998.20 : x
  2. Step 2: Convert to fraction form
    781,528.92/1,172,036.34 = 275,998.20/x
  3. Step 3: Cross multiply
    781,528.92x = 1,172,036.34 × 275,998.20
  4. Step 4: Simplify right side
    781,528.92x = 323,479,920,174.59
  5. Step 5: Solve for x
    x = 323,479,920,174.59/781,528.92
  6. Step 6: Final answer
    x = 413,906.53

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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.