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Finding the Fourth Proportional to 283,454.77, 391,168.13 and 154,392.84

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Solution

The fourth proportional to 283,454.77, 391,168.13 and 154,392.84 is: 213,062.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,454.77 : 391,168.13 = 154,392.84 : x
  2. Step 2: Convert to fraction form
    283,454.77/391,168.13 = 154,392.84/x
  3. Step 3: Cross multiply
    283,454.77x = 391,168.13 × 154,392.84
  4. Step 4: Simplify right side
    283,454.77x = 60,393,559,418.58
  5. Step 5: Solve for x
    x = 60,393,559,418.58/283,454.77
  6. Step 6: Final answer
    x = 213,062.42

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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.