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Finding the Fourth Proportional to 467,753.32, 645,069.18 and 306,549.82

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Solution

The fourth proportional to 467,753.32, 645,069.18 and 306,549.82 is: 422,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,753.32 : 645,069.18 = 306,549.82 : x
  2. Step 2: Convert to fraction form
    467,753.32/645,069.18 = 306,549.82/x
  3. Step 3: Cross multiply
    467,753.32x = 645,069.18 × 306,549.82
  4. Step 4: Simplify right side
    467,753.32x = 197,745,841,016.55
  5. Step 5: Solve for x
    x = 197,745,841,016.55/467,753.32
  6. Step 6: Final answer
    x = 422,756.68

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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.