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Finding the Fourth Proportional to 372,806.34, 514,519.08 and 211,713.15

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Solution

The fourth proportional to 372,806.34, 514,519.08 and 211,713.15 is: 292,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,806.34 : 514,519.08 = 211,713.15 : x
  2. Step 2: Convert to fraction form
    372,806.34/514,519.08 = 211,713.15/x
  3. Step 3: Cross multiply
    372,806.34x = 514,519.08 × 211,713.15
  4. Step 4: Simplify right side
    372,806.34x = 108,930,455,161.90
  5. Step 5: Solve for x
    x = 108,930,455,161.90/372,806.34
  6. Step 6: Final answer
    x = 292,190.46

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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.