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Finding the Fourth Proportional to 393,634.35, 543,199.77 and 232,541.28

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Solution

The fourth proportional to 393,634.35, 543,199.77 and 232,541.28 is: 320,897.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,634.35 : 543,199.77 = 232,541.28 : x
  2. Step 2: Convert to fraction form
    393,634.35/543,199.77 = 232,541.28/x
  3. Step 3: Cross multiply
    393,634.35x = 543,199.77 × 232,541.28
  4. Step 4: Simplify right side
    393,634.35x = 126,316,369,811.51
  5. Step 5: Solve for x
    x = 126,316,369,811.51/393,634.35
  6. Step 6: Final answer
    x = 320,897.73

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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.