Home / 1,121,388.33-1,681,082.13-411,251.61

Finding the Fourth Proportional to 1,121,388.33, 1,681,082.13 and 411,251.61

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Solution

The fourth proportional to 1,121,388.33, 1,681,082.13 and 411,251.61 is: 616,510.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,388.33 : 1,681,082.13 = 411,251.61 : x
  2. Step 2: Convert to fraction form
    1,121,388.33/1,681,082.13 = 411,251.61/x
  3. Step 3: Cross multiply
    1,121,388.33x = 1,681,082.13 × 411,251.61
  4. Step 4: Simplify right side
    1,121,388.33x = 691,347,732,504.73
  5. Step 5: Solve for x
    x = 691,347,732,504.73/1,121,388.33
  6. Step 6: Final answer
    x = 616,510.55

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Double scale
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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.