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Finding the Fourth Proportional to 393,368.92, 543,046.74 and 232,274.44

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Solution

The fourth proportional to 393,368.92, 543,046.74 and 232,274.44 is: 320,655.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,368.92 : 543,046.74 = 232,274.44 : x
  2. Step 2: Convert to fraction form
    393,368.92/543,046.74 = 232,274.44/x
  3. Step 3: Cross multiply
    393,368.92x = 543,046.74 × 232,274.44
  4. Step 4: Simplify right side
    393,368.92x = 126,135,877,427.33
  5. Step 5: Solve for x
    x = 126,135,877,427.33/393,368.92
  6. Step 6: Final answer
    x = 320,655.42

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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.