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Finding the Fourth Proportional to 515,321.60, 773,020.80 and 182,854.40

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Solution

The fourth proportional to 515,321.60, 773,020.80 and 182,854.40 is: 274,295.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,321.60 : 773,020.80 = 182,854.40 : x
  2. Step 2: Convert to fraction form
    515,321.60/773,020.80 = 182,854.40/x
  3. Step 3: Cross multiply
    515,321.60x = 773,020.80 × 182,854.40
  4. Step 4: Simplify right side
    515,321.60x = 141,350,254,571.52
  5. Step 5: Solve for x
    x = 141,350,254,571.52/515,321.60
  6. Step 6: Final answer
    x = 274,295.23

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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.