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Finding the Fourth Proportional to 605,887.10, 908,830.65 and 512,575.10

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Solution

The fourth proportional to 605,887.10, 908,830.65 and 512,575.10 is: 768,862.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,887.10 : 908,830.65 = 512,575.10 : x
  2. Step 2: Convert to fraction form
    605,887.10/908,830.65 = 512,575.10/x
  3. Step 3: Cross multiply
    605,887.10x = 908,830.65 × 512,575.10
  4. Step 4: Simplify right side
    605,887.10x = 465,843,961,306.82
  5. Step 5: Solve for x
    x = 465,843,961,306.82/605,887.10
  6. Step 6: Final answer
    x = 768,862.65

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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.