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Finding the Fourth Proportional to 622,998.60, 934,497.90 and 410,422.20

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Solution

The fourth proportional to 622,998.60, 934,497.90 and 410,422.20 is: 615,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,998.60 : 934,497.90 = 410,422.20 : x
  2. Step 2: Convert to fraction form
    622,998.60/934,497.90 = 410,422.20/x
  3. Step 3: Cross multiply
    622,998.60x = 934,497.90 × 410,422.20
  4. Step 4: Simplify right side
    622,998.60x = 383,538,684,013.38
  5. Step 5: Solve for x
    x = 383,538,684,013.38/622,998.60
  6. Step 6: Final answer
    x = 615,633.30

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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.