Home / 664,385.10-996,577.65-617,145.90

Finding the Fourth Proportional to 664,385.10, 996,577.65 and 617,145.90

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Solution

The fourth proportional to 664,385.10, 996,577.65 and 617,145.90 is: 925,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,385.10 : 996,577.65 = 617,145.90 : x
  2. Step 2: Convert to fraction form
    664,385.10/996,577.65 = 617,145.90/x
  3. Step 3: Cross multiply
    664,385.10x = 996,577.65 × 617,145.90
  4. Step 4: Simplify right side
    664,385.10x = 615,033,810,729.14
  5. Step 5: Solve for x
    x = 615,033,810,729.14/664,385.10
  6. Step 6: Final answer
    x = 925,718.85

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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.