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Finding the Fourth Proportional to 605,999.10, 908,998.65 and 512,687.10

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Solution

The fourth proportional to 605,999.10, 908,998.65 and 512,687.10 is: 769,030.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,999.10 : 908,998.65 = 512,687.10 : x
  2. Step 2: Convert to fraction form
    605,999.10/908,998.65 = 512,687.10/x
  3. Step 3: Cross multiply
    605,999.10x = 908,998.65 × 512,687.10
  4. Step 4: Simplify right side
    605,999.10x = 466,031,881,772.42
  5. Step 5: Solve for x
    x = 466,031,881,772.42/605,999.10
  6. Step 6: Final answer
    x = 769,030.65

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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.