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Finding the Fourth Proportional to 605,405.05, 908,108.70 and 568,411.77

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Solution

The fourth proportional to 605,405.05, 908,108.70 and 568,411.77 is: 852,618.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,405.05 : 908,108.70 = 568,411.77 : x
  2. Step 2: Convert to fraction form
    605,405.05/908,108.70 = 568,411.77/x
  3. Step 3: Cross multiply
    605,405.05x = 908,108.70 × 568,411.77
  4. Step 4: Simplify right side
    605,405.05x = 516,179,672,882.47
  5. Step 5: Solve for x
    x = 516,179,672,882.47/605,405.05
  6. Step 6: Final answer
    x = 852,618.71

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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.