Home / 283,979.34-391,892.60-154,920.57

Finding the Fourth Proportional to 283,979.34, 391,892.60 and 154,920.57

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Solution

The fourth proportional to 283,979.34, 391,892.60 and 154,920.57 is: 213,790.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,979.34 : 391,892.60 = 154,920.57 : x
  2. Step 2: Convert to fraction form
    283,979.34/391,892.60 = 154,920.57/x
  3. Step 3: Cross multiply
    283,979.34x = 391,892.60 × 154,920.57
  4. Step 4: Simplify right side
    283,979.34x = 60,712,223,888.49
  5. Step 5: Solve for x
    x = 60,712,223,888.49/283,979.34
  6. Step 6: Final answer
    x = 213,790.99

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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.