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Finding the Fourth Proportional to 372,874.56, 514,549.18 and 211,708.46

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Solution

The fourth proportional to 372,874.56, 514,549.18 and 211,708.46 is: 292,147.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,874.56 : 514,549.18 = 211,708.46 : x
  2. Step 2: Convert to fraction form
    372,874.56/514,549.18 = 211,708.46/x
  3. Step 3: Cross multiply
    372,874.56x = 514,549.18 × 211,708.46
  4. Step 4: Simplify right side
    372,874.56x = 108,934,414,492.06
  5. Step 5: Solve for x
    x = 108,934,414,492.06/372,874.56
  6. Step 6: Final answer
    x = 292,147.62

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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.