Home / 515,436.30-772,969.20-178,385.52

Finding the Fourth Proportional to 515,436.30, 772,969.20 and 178,385.52

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Solution

The fourth proportional to 515,436.30, 772,969.20 and 178,385.52 is: 267,514.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,436.30 : 772,969.20 = 178,385.52 : x
  2. Step 2: Convert to fraction form
    515,436.30/772,969.20 = 178,385.52/x
  3. Step 3: Cross multiply
    515,436.30x = 772,969.20 × 178,385.52
  4. Step 4: Simplify right side
    515,436.30x = 137,886,512,685.98
  5. Step 5: Solve for x
    x = 137,886,512,685.98/515,436.30
  6. Step 6: Final answer
    x = 267,514.17

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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.