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Finding the Fourth Proportional to 381,964.80, 572,569.20 and 168,848.40

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Solution

The fourth proportional to 381,964.80, 572,569.20 and 168,848.40 is: 253,105.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,964.80 : 572,569.20 = 168,848.40 : x
  2. Step 2: Convert to fraction form
    381,964.80/572,569.20 = 168,848.40/x
  3. Step 3: Cross multiply
    381,964.80x = 572,569.20 × 168,848.40
  4. Step 4: Simplify right side
    381,964.80x = 96,677,393,309.28
  5. Step 5: Solve for x
    x = 96,677,393,309.28/381,964.80
  6. Step 6: Final answer
    x = 253,105.50

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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.