Home / 826,863.20-1,240,294.80-574,920.80

Finding the Fourth Proportional to 826,863.20, 1,240,294.80 and 574,920.80

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Solution

The fourth proportional to 826,863.20, 1,240,294.80 and 574,920.80 is: 862,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,863.20 : 1,240,294.80 = 574,920.80 : x
  2. Step 2: Convert to fraction form
    826,863.20/1,240,294.80 = 574,920.80/x
  3. Step 3: Cross multiply
    826,863.20x = 1,240,294.80 × 574,920.80
  4. Step 4: Simplify right side
    826,863.20x = 713,071,278,651.84
  5. Step 5: Solve for x
    x = 713,071,278,651.84/826,863.20
  6. Step 6: Final answer
    x = 862,381.20

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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.