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Finding the Fourth Proportional to 622,987.60, 934,481.40 and 617,082.70

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Solution

The fourth proportional to 622,987.60, 934,481.40 and 617,082.70 is: 925,624.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,987.60 : 934,481.40 = 617,082.70 : x
  2. Step 2: Convert to fraction form
    622,987.60/934,481.40 = 617,082.70/x
  3. Step 3: Cross multiply
    622,987.60x = 934,481.40 × 617,082.70
  4. Step 4: Simplify right side
    622,987.60x = 576,652,305,411.78
  5. Step 5: Solve for x
    x = 576,652,305,411.78/622,987.60
  6. Step 6: Final answer
    x = 925,624.05

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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.