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Finding the Fourth Proportional to 393,781.68, 543,234.24 and 232,526.88

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Solution

The fourth proportional to 393,781.68, 543,234.24 and 232,526.88 is: 320,778.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,781.68 : 543,234.24 = 232,526.88 : x
  2. Step 2: Convert to fraction form
    393,781.68/543,234.24 = 232,526.88/x
  3. Step 3: Cross multiply
    393,781.68x = 543,234.24 × 232,526.88
  4. Step 4: Simplify right side
    393,781.68x = 126,316,562,936.37
  5. Step 5: Solve for x
    x = 126,316,562,936.37/393,781.68
  6. Step 6: Final answer
    x = 320,778.16

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1.5x scale

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.