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Finding the Fourth Proportional to 393,654.29, 543,055.82 and 232,401.32

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Solution

The fourth proportional to 393,654.29, 543,055.82 and 232,401.32 is: 320,603.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,654.29 : 543,055.82 = 232,401.32 : x
  2. Step 2: Convert to fraction form
    393,654.29/543,055.82 = 232,401.32/x
  3. Step 3: Cross multiply
    393,654.29x = 543,055.82 × 232,401.32
  4. Step 4: Simplify right side
    393,654.29x = 126,206,885,524.40
  5. Step 5: Solve for x
    x = 126,206,885,524.40/393,654.29
  6. Step 6: Final answer
    x = 320,603.36

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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.