Home / 998,515.40-1,497,773.10-679,650.80

Finding the Fourth Proportional to 998,515.40, 1,497,773.10 and 679,650.80

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Solution

The fourth proportional to 998,515.40, 1,497,773.10 and 679,650.80 is: 1,019,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,515.40 : 1,497,773.10 = 679,650.80 : x
  2. Step 2: Convert to fraction form
    998,515.40/1,497,773.10 = 679,650.80/x
  3. Step 3: Cross multiply
    998,515.40x = 1,497,773.10 × 679,650.80
  4. Step 4: Simplify right side
    998,515.40x = 1,017,962,685,633.48
  5. Step 5: Solve for x
    x = 1,017,962,685,633.48/998,515.40
  6. Step 6: Final answer
    x = 1,019,476.20

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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.