Home / 321,512.79-443,646.86-176,280.35

Finding the Fourth Proportional to 321,512.79, 443,646.86 and 176,280.35

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Solution

The fourth proportional to 321,512.79, 443,646.86 and 176,280.35 is: 243,244.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,512.79 : 443,646.86 = 176,280.35 : x
  2. Step 2: Convert to fraction form
    321,512.79/443,646.86 = 176,280.35/x
  3. Step 3: Cross multiply
    321,512.79x = 443,646.86 × 176,280.35
  4. Step 4: Simplify right side
    321,512.79x = 78,206,223,757.20
  5. Step 5: Solve for x
    x = 78,206,223,757.20/321,512.79
  6. Step 6: Final answer
    x = 243,244.52

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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.