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Finding the Fourth Proportional to 605,411.10, 908,116.65 and 576,380.70

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Solution

The fourth proportional to 605,411.10, 908,116.65 and 576,380.70 is: 864,571.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,411.10 : 908,116.65 = 576,380.70 : x
  2. Step 2: Convert to fraction form
    605,411.10/908,116.65 = 576,380.70/x
  3. Step 3: Cross multiply
    605,411.10x = 908,116.65 × 576,380.70
  4. Step 4: Simplify right side
    605,411.10x = 523,420,910,408.66
  5. Step 5: Solve for x
    x = 523,420,910,408.66/605,411.10
  6. Step 6: Final answer
    x = 864,571.05

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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.