Home / 283,723.74-391,566.38-211,979.21

Finding the Fourth Proportional to 283,723.74, 391,566.38 and 211,979.21

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Solution

The fourth proportional to 283,723.74, 391,566.38 and 211,979.21 is: 292,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,723.74 : 391,566.38 = 211,979.21 : x
  2. Step 2: Convert to fraction form
    283,723.74/391,566.38 = 211,979.21/x
  3. Step 3: Cross multiply
    283,723.74x = 391,566.38 × 211,979.21
  4. Step 4: Simplify right side
    283,723.74x = 83,003,928,877.23
  5. Step 5: Solve for x
    x = 83,003,928,877.23/283,723.74
  6. Step 6: Final answer
    x = 292,551.93

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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.