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Finding the Fourth Proportional to 616,589.57, 851,001.89 and 358,546.37

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Solution

The fourth proportional to 616,589.57, 851,001.89 and 358,546.37 is: 494,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,589.57 : 851,001.89 = 358,546.37 : x
  2. Step 2: Convert to fraction form
    616,589.57/851,001.89 = 358,546.37/x
  3. Step 3: Cross multiply
    616,589.57x = 851,001.89 × 358,546.37
  4. Step 4: Simplify right side
    616,589.57x = 305,123,632,474.90
  5. Step 5: Solve for x
    x = 305,123,632,474.90/616,589.57
  6. Step 6: Final answer
    x = 494,856.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.