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Finding the Fourth Proportional to 1,951,225.60, 2,927,713.20 and 885,719.20

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Solution

The fourth proportional to 1,951,225.60, 2,927,713.20 and 885,719.20 is: 1,328,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951,225.60 : 2,927,713.20 = 885,719.20 : x
  2. Step 2: Convert to fraction form
    1,951,225.60/2,927,713.20 = 885,719.20/x
  3. Step 3: Cross multiply
    1,951,225.60x = 2,927,713.20 × 885,719.20
  4. Step 4: Simplify right side
    1,951,225.60x = 2,593,131,793,333.44
  5. Step 5: Solve for x
    x = 2,593,131,793,333.44/1,951,225.60
  6. Step 6: Final answer
    x = 1,328,975.90

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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.