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Finding the Fourth Proportional to 447,561.89, 617,648.53 and 243,626.11

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Solution

The fourth proportional to 447,561.89, 617,648.53 and 243,626.11 is: 336,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,561.89 : 617,648.53 = 243,626.11 : x
  2. Step 2: Convert to fraction form
    447,561.89/617,648.53 = 243,626.11/x
  3. Step 3: Cross multiply
    447,561.89x = 617,648.53 × 243,626.11
  4. Step 4: Simplify right side
    447,561.89x = 150,475,308,711.12
  5. Step 5: Solve for x
    x = 150,475,308,711.12/447,561.89
  6. Step 6: Final answer
    x = 336,211.17

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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.