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Finding the Fourth Proportional to 397,766.90, 596,650.35 and 327,498.59

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Solution

The fourth proportional to 397,766.90, 596,650.35 and 327,498.59 is: 491,247.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,766.90 : 596,650.35 = 327,498.59 : x
  2. Step 2: Convert to fraction form
    397,766.90/596,650.35 = 327,498.59/x
  3. Step 3: Cross multiply
    397,766.90x = 596,650.35 × 327,498.59
  4. Step 4: Simplify right side
    397,766.90x = 195,402,151,067.75
  5. Step 5: Solve for x
    x = 195,402,151,067.75/397,766.90
  6. Step 6: Final answer
    x = 491,247.89

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Double scale
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Similar ratio
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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.