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Finding the Fourth Proportional to 283,581.87, 391,042.04 and 255,019.65

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Solution

The fourth proportional to 283,581.87, 391,042.04 and 255,019.65 is: 351,656.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,581.87 : 391,042.04 = 255,019.65 : x
  2. Step 2: Convert to fraction form
    283,581.87/391,042.04 = 255,019.65/x
  3. Step 3: Cross multiply
    283,581.87x = 391,042.04 × 255,019.65
  4. Step 4: Simplify right side
    283,581.87x = 99,723,404,176.09
  5. Step 5: Solve for x
    x = 99,723,404,176.09/283,581.87
  6. Step 6: Final answer
    x = 351,656.49

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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.