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Finding the Fourth Proportional to 532,343.70, 798,515.55 and 266,145.30

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Solution

The fourth proportional to 532,343.70, 798,515.55 and 266,145.30 is: 399,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,343.70 : 798,515.55 = 266,145.30 : x
  2. Step 2: Convert to fraction form
    532,343.70/798,515.55 = 266,145.30/x
  3. Step 3: Cross multiply
    532,343.70x = 798,515.55 × 266,145.30
  4. Step 4: Simplify right side
    532,343.70x = 212,521,160,609.42
  5. Step 5: Solve for x
    x = 212,521,160,609.42/532,343.70
  6. Step 6: Final answer
    x = 399,217.95

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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.