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Finding the Fourth Proportional to 404,902.65, 558,765.65 and 235,147.71

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Solution

The fourth proportional to 404,902.65, 558,765.65 and 235,147.71 is: 324,503.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,902.65 : 558,765.65 = 235,147.71 : x
  2. Step 2: Convert to fraction form
    404,902.65/558,765.65 = 235,147.71/x
  3. Step 3: Cross multiply
    404,902.65x = 558,765.65 × 235,147.71
  4. Step 4: Simplify right side
    404,902.65x = 131,392,463,024.16
  5. Step 5: Solve for x
    x = 131,392,463,024.16/404,902.65
  6. Step 6: Final answer
    x = 324,503.84

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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.