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Finding the Fourth Proportional to 447,597.16, 617,691.96 and 243,653.94

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Solution

The fourth proportional to 447,597.16, 617,691.96 and 243,653.94 is: 336,246.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,597.16 : 617,691.96 = 243,653.94 : x
  2. Step 2: Convert to fraction form
    447,597.16/617,691.96 = 243,653.94/x
  3. Step 3: Cross multiply
    447,597.16x = 617,691.96 × 243,653.94
  4. Step 4: Simplify right side
    447,597.16x = 150,503,079,760.32
  5. Step 5: Solve for x
    x = 150,503,079,760.32/447,597.16
  6. Step 6: Final answer
    x = 336,246.73

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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.