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Finding the Fourth Proportional to 605,969.10, 908,953.65 and 512,657.10

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Solution

The fourth proportional to 605,969.10, 908,953.65 and 512,657.10 is: 768,985.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,969.10 : 908,953.65 = 512,657.10 : x
  2. Step 2: Convert to fraction form
    605,969.10/908,953.65 = 512,657.10/x
  3. Step 3: Cross multiply
    605,969.10x = 908,953.65 × 512,657.10
  4. Step 4: Simplify right side
    605,969.10x = 465,981,542,243.42
  5. Step 5: Solve for x
    x = 465,981,542,243.42/605,969.10
  6. Step 6: Final answer
    x = 768,985.65

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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.