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Finding the Fourth Proportional to 1,853,835.20, 2,781,196.80 and 773,747.20

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Solution

The fourth proportional to 1,853,835.20, 2,781,196.80 and 773,747.20 is: 1,160,806.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853,835.20 : 2,781,196.80 = 773,747.20 : x
  2. Step 2: Convert to fraction form
    1,853,835.20/2,781,196.80 = 773,747.20/x
  3. Step 3: Cross multiply
    1,853,835.20x = 2,781,196.80 × 773,747.20
  4. Step 4: Simplify right side
    1,853,835.20x = 2,151,943,236,648.96
  5. Step 5: Solve for x
    x = 2,151,943,236,648.96/1,853,835.20
  6. Step 6: Final answer
    x = 1,160,806.12

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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.