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Finding the Fourth Proportional to 393,127.92, 589,634.28 and 193,394.88

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Solution

The fourth proportional to 393,127.92, 589,634.28 and 193,394.88 is: 290,063.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,127.92 : 589,634.28 = 193,394.88 : x
  2. Step 2: Convert to fraction form
    393,127.92/589,634.28 = 193,394.88/x
  3. Step 3: Cross multiply
    393,127.92x = 589,634.28 × 193,394.88
  4. Step 4: Simplify right side
    393,127.92x = 114,032,250,824.49
  5. Step 5: Solve for x
    x = 114,032,250,824.49/393,127.92
  6. Step 6: Final answer
    x = 290,063.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.