Home / 645,136.20-967,704.30-605,770.20

Finding the Fourth Proportional to 645,136.20, 967,704.30 and 605,770.20

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Solution

The fourth proportional to 645,136.20, 967,704.30 and 605,770.20 is: 908,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,136.20 : 967,704.30 = 605,770.20 : x
  2. Step 2: Convert to fraction form
    645,136.20/967,704.30 = 605,770.20/x
  3. Step 3: Cross multiply
    645,136.20x = 967,704.30 × 605,770.20
  4. Step 4: Simplify right side
    645,136.20x = 586,206,427,351.86
  5. Step 5: Solve for x
    x = 586,206,427,351.86/645,136.20
  6. Step 6: Final answer
    x = 908,655.30

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Half scale
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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.