Home / 321,512.29-443,646.18-176,279.85

Finding the Fourth Proportional to 321,512.29, 443,646.18 and 176,279.85

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Solution

The fourth proportional to 321,512.29, 443,646.18 and 176,279.85 is: 243,243.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,512.29 : 443,646.18 = 176,279.85 : x
  2. Step 2: Convert to fraction form
    321,512.29/443,646.18 = 176,279.85/x
  3. Step 3: Cross multiply
    321,512.29x = 443,646.18 × 176,279.85
  4. Step 4: Simplify right side
    321,512.29x = 78,205,881,182.07
  5. Step 5: Solve for x
    x = 78,205,881,182.07/321,512.29
  6. Step 6: Final answer
    x = 243,243.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.