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Finding the Fourth Proportional to 622,658.60, 933,987.90 and 410,082.20

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Solution

The fourth proportional to 622,658.60, 933,987.90 and 410,082.20 is: 615,123.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,658.60 : 933,987.90 = 410,082.20 : x
  2. Step 2: Convert to fraction form
    622,658.60/933,987.90 = 410,082.20/x
  3. Step 3: Cross multiply
    622,658.60x = 933,987.90 × 410,082.20
  4. Step 4: Simplify right side
    622,658.60x = 383,011,812,805.38
  5. Step 5: Solve for x
    x = 383,011,812,805.38/622,658.60
  6. Step 6: Final answer
    x = 615,123.30

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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.