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Finding the Fourth Proportional to 453,898, 680,785.71 and 187,621.57

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Solution

The fourth proportional to 453,898, 680,785.71 and 187,621.57 is: 281,407.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,898 : 680,785.71 = 187,621.57 : x
  2. Step 2: Convert to fraction form
    453,898/680,785.71 = 187,621.57/x
  3. Step 3: Cross multiply
    453,898x = 680,785.71 × 187,621.57
  4. Step 4: Simplify right side
    453,898x = 127,730,083,743.77
  5. Step 5: Solve for x
    x = 127,730,083,743.77/453,898
  6. Step 6: Final answer
    x = 281,407.02

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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.