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Finding the Fourth Proportional to 633,425.23, 874,141.03 and 361,487.71

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Solution

The fourth proportional to 633,425.23, 874,141.03 and 361,487.71 is: 498,861.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,425.23 : 874,141.03 = 361,487.71 : x
  2. Step 2: Convert to fraction form
    633,425.23/874,141.03 = 361,487.71/x
  3. Step 3: Cross multiply
    633,425.23x = 874,141.03 × 361,487.71
  4. Step 4: Simplify right side
    633,425.23x = 315,991,239,151.74
  5. Step 5: Solve for x
    x = 315,991,239,151.74/633,425.23
  6. Step 6: Final answer
    x = 498,861.15

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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.