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Finding the Fourth Proportional to 329,764.40, 495,229.80 and 255,066.20

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Solution

The fourth proportional to 329,764.40, 495,229.80 and 255,066.20 is: 383,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,764.40 : 495,229.80 = 255,066.20 : x
  2. Step 2: Convert to fraction form
    329,764.40/495,229.80 = 255,066.20/x
  3. Step 3: Cross multiply
    329,764.40x = 495,229.80 × 255,066.20
  4. Step 4: Simplify right side
    329,764.40x = 126,316,383,212.76
  5. Step 5: Solve for x
    x = 126,316,383,212.76/329,764.40
  6. Step 6: Final answer
    x = 383,050.39

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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.