Home / 283,799.16-391,645.48-156,479.28

Finding the Fourth Proportional to 283,799.16, 391,645.48 and 156,479.28

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Solution

The fourth proportional to 283,799.16, 391,645.48 and 156,479.28 is: 215,942.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,799.16 : 391,645.48 = 156,479.28 : x
  2. Step 2: Convert to fraction form
    283,799.16/391,645.48 = 156,479.28/x
  3. Step 3: Cross multiply
    283,799.16x = 391,645.48 × 156,479.28
  4. Step 4: Simplify right side
    283,799.16x = 61,284,402,725.65
  5. Step 5: Solve for x
    x = 61,284,402,725.65/283,799.16
  6. Step 6: Final answer
    x = 215,942.86

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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.