Home / 283,514.40-391,389.84-193,338.72

Finding the Fourth Proportional to 283,514.40, 391,389.84 and 193,338.72

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Solution

The fourth proportional to 283,514.40, 391,389.84 and 193,338.72 is: 266,902.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,514.40 : 391,389.84 = 193,338.72 : x
  2. Step 2: Convert to fraction form
    283,514.40/391,389.84 = 193,338.72/x
  3. Step 3: Cross multiply
    283,514.40x = 391,389.84 × 193,338.72
  4. Step 4: Simplify right side
    283,514.40x = 75,670,810,686.60
  5. Step 5: Solve for x
    x = 75,670,810,686.60/283,514.40
  6. Step 6: Final answer
    x = 266,902.88

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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.