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Finding the Fourth Proportional to 361,936.80, 543,081.84 and 256,001.40

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Solution

The fourth proportional to 361,936.80, 543,081.84 and 256,001.40 is: 384,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,936.80 : 543,081.84 = 256,001.40 : x
  2. Step 2: Convert to fraction form
    361,936.80/543,081.84 = 256,001.40/x
  3. Step 3: Cross multiply
    361,936.80x = 543,081.84 × 256,001.40
  4. Step 4: Simplify right side
    361,936.80x = 139,029,711,354.58
  5. Step 5: Solve for x
    x = 139,029,711,354.58/361,936.80
  6. Step 6: Final answer
    x = 384,127.04

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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.