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Finding the Fourth Proportional to 283,951.20, 425,926.80 and 213,092.40

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Solution

The fourth proportional to 283,951.20, 425,926.80 and 213,092.40 is: 319,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,951.20 : 425,926.80 = 213,092.40 : x
  2. Step 2: Convert to fraction form
    283,951.20/425,926.80 = 213,092.40/x
  3. Step 3: Cross multiply
    283,951.20x = 425,926.80 × 213,092.40
  4. Step 4: Simplify right side
    283,951.20x = 90,761,764,036.32
  5. Step 5: Solve for x
    x = 90,761,764,036.32/283,951.20
  6. Step 6: Final answer
    x = 319,638.60

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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.