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Finding the Fourth Proportional to 605,040.60, 907,560.90 and 578,468.55

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Solution

The fourth proportional to 605,040.60, 907,560.90 and 578,468.55 is: 867,702.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,040.60 : 907,560.90 = 578,468.55 : x
  2. Step 2: Convert to fraction form
    605,040.60/907,560.90 = 578,468.55/x
  3. Step 3: Cross multiply
    605,040.60x = 907,560.90 × 578,468.55
  4. Step 4: Simplify right side
    605,040.60x = 524,995,437,859.70
  5. Step 5: Solve for x
    x = 524,995,437,859.70/605,040.60
  6. Step 6: Final answer
    x = 867,702.83

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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.