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Finding the Fourth Proportional to 574,718.10, 862,077.15 and 219,743.70

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Solution

The fourth proportional to 574,718.10, 862,077.15 and 219,743.70 is: 329,615.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,718.10 : 862,077.15 = 219,743.70 : x
  2. Step 2: Convert to fraction form
    574,718.10/862,077.15 = 219,743.70/x
  3. Step 3: Cross multiply
    574,718.10x = 862,077.15 × 219,743.70
  4. Step 4: Simplify right side
    574,718.10x = 189,436,022,626.46
  5. Step 5: Solve for x
    x = 189,436,022,626.46/574,718.10
  6. Step 6: Final answer
    x = 329,615.55

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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.