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Finding the Fourth Proportional to 605,140.10, 907,710.15 and 577,583.90

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Solution

The fourth proportional to 605,140.10, 907,710.15 and 577,583.90 is: 866,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,140.10 : 907,710.15 = 577,583.90 : x
  2. Step 2: Convert to fraction form
    605,140.10/907,710.15 = 577,583.90/x
  3. Step 3: Cross multiply
    605,140.10x = 907,710.15 × 577,583.90
  4. Step 4: Simplify right side
    605,140.10x = 524,278,768,506.59
  5. Step 5: Solve for x
    x = 524,278,768,506.59/605,140.10
  6. Step 6: Final answer
    x = 866,375.85

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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.