Home / 283,446.89-391,148.69-154,382.43

Finding the Fourth Proportional to 283,446.89, 391,148.69 and 154,382.43

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Solution

The fourth proportional to 283,446.89, 391,148.69 and 154,382.43 is: 213,043.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,446.89 : 391,148.69 = 154,382.43 : x
  2. Step 2: Convert to fraction form
    283,446.89/391,148.69 = 154,382.43/x
  3. Step 3: Cross multiply
    283,446.89x = 391,148.69 × 154,382.43
  4. Step 4: Simplify right side
    283,446.89x = 60,386,485,253.52
  5. Step 5: Solve for x
    x = 60,386,485,253.52/283,446.89
  6. Step 6: Final answer
    x = 213,043.39

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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.