Home / 998,171.40-1,497,257.10-679,306.80

Finding the Fourth Proportional to 998,171.40, 1,497,257.10 and 679,306.80

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Solution

The fourth proportional to 998,171.40, 1,497,257.10 and 679,306.80 is: 1,018,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,171.40 : 1,497,257.10 = 679,306.80 : x
  2. Step 2: Convert to fraction form
    998,171.40/1,497,257.10 = 679,306.80/x
  3. Step 3: Cross multiply
    998,171.40x = 1,497,257.10 × 679,306.80
  4. Step 4: Simplify right side
    998,171.40x = 1,017,096,929,378.28
  5. Step 5: Solve for x
    x = 1,017,096,929,378.28/998,171.40
  6. Step 6: Final answer
    x = 1,018,960.20

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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.