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Finding the Fourth Proportional to 882,212.10, 1,323,318.15 and 800,855.70

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Solution

The fourth proportional to 882,212.10, 1,323,318.15 and 800,855.70 is: 1,201,283.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,212.10 : 1,323,318.15 = 800,855.70 : x
  2. Step 2: Convert to fraction form
    882,212.10/1,323,318.15 = 800,855.70/x
  3. Step 3: Cross multiply
    882,212.10x = 1,323,318.15 × 800,855.70
  4. Step 4: Simplify right side
    882,212.10x = 1,059,786,883,340.95
  5. Step 5: Solve for x
    x = 1,059,786,883,340.95/882,212.10
  6. Step 6: Final answer
    x = 1,201,283.55

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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.