Home / 261,519.76-392,193.78-83,984.77

Finding the Fourth Proportional to 261,519.76, 392,193.78 and 83,984.77

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Solution

The fourth proportional to 261,519.76, 392,193.78 and 83,984.77 is: 125,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,519.76 : 392,193.78 = 83,984.77 : x
  2. Step 2: Convert to fraction form
    261,519.76/392,193.78 = 83,984.77/x
  3. Step 3: Cross multiply
    261,519.76x = 392,193.78 × 83,984.77
  4. Step 4: Simplify right side
    261,519.76x = 32,938,304,408.73
  5. Step 5: Solve for x
    x = 32,938,304,408.73/261,519.76
  6. Step 6: Final answer
    x = 125,949.58

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1.5x scale

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.