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Finding the Fourth Proportional to 283,701.88, 391,503.27 and 154,641.58

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Solution

The fourth proportional to 283,701.88, 391,503.27 and 154,641.58 is: 213,402.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,701.88 : 391,503.27 = 154,641.58 : x
  2. Step 2: Convert to fraction form
    283,701.88/391,503.27 = 154,641.58/x
  3. Step 3: Cross multiply
    283,701.88x = 391,503.27 × 154,641.58
  4. Step 4: Simplify right side
    283,701.88x = 60,542,684,247.97
  5. Step 5: Solve for x
    x = 60,542,684,247.97/283,701.88
  6. Step 6: Final answer
    x = 213,402.48

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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.