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Finding the Fourth Proportional to 1,766,309.73, 2,648,822.05 and 755,505.60

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Solution

The fourth proportional to 1,766,309.73, 2,648,822.05 and 755,505.60 is: 1,132,983.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766,309.73 : 2,648,822.05 = 755,505.60 : x
  2. Step 2: Convert to fraction form
    1,766,309.73/2,648,822.05 = 755,505.60/x
  3. Step 3: Cross multiply
    1,766,309.73x = 2,648,822.05 × 755,505.60
  4. Step 4: Simplify right side
    1,766,309.73x = 2,001,199,892,178.48
  5. Step 5: Solve for x
    x = 2,001,199,892,178.48/1,766,309.73
  6. Step 6: Final answer
    x = 1,132,983.56

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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.