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Finding the Fourth Proportional to 580,306.25, 870,179.23 and 243,256.39

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Solution

The fourth proportional to 580,306.25, 870,179.23 and 243,256.39 is: 364,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,306.25 : 870,179.23 = 243,256.39 : x
  2. Step 2: Convert to fraction form
    580,306.25/870,179.23 = 243,256.39/x
  3. Step 3: Cross multiply
    580,306.25x = 870,179.23 × 243,256.39
  4. Step 4: Simplify right side
    580,306.25x = 211,676,658,034.62
  5. Step 5: Solve for x
    x = 211,676,658,034.62/580,306.25
  6. Step 6: Final answer
    x = 364,767.15

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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.