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Finding the Fourth Proportional to 438,786, 605,524.68 and 237,582

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Solution

The fourth proportional to 438,786, 605,524.68 and 237,582 is: 327,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,786 : 605,524.68 = 237,582 : x
  2. Step 2: Convert to fraction form
    438,786/605,524.68 = 237,582/x
  3. Step 3: Cross multiply
    438,786x = 605,524.68 × 237,582
  4. Step 4: Simplify right side
    438,786x = 143,861,764,523.76
  5. Step 5: Solve for x
    x = 143,861,764,523.76/438,786
  6. Step 6: Final answer
    x = 327,863.16

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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.