Home / 910,812.10-1,366,218.15-279,757.30

Finding the Fourth Proportional to 910,812.10, 1,366,218.15 and 279,757.30

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Solution

The fourth proportional to 910,812.10, 1,366,218.15 and 279,757.30 is: 419,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,812.10 : 1,366,218.15 = 279,757.30 : x
  2. Step 2: Convert to fraction form
    910,812.10/1,366,218.15 = 279,757.30/x
  3. Step 3: Cross multiply
    910,812.10x = 1,366,218.15 × 279,757.30
  4. Step 4: Simplify right side
    910,812.10x = 382,209,500,855.00
  5. Step 5: Solve for x
    x = 382,209,500,855.00/910,812.10
  6. Step 6: Final answer
    x = 419,635.95

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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.