Home / 866,287.20-1,299,616.20-259,123.14

Finding the Fourth Proportional to 866,287.20, 1,299,616.20 and 259,123.14

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Solution

The fourth proportional to 866,287.20, 1,299,616.20 and 259,123.14 is: 388,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,287.20 : 1,299,616.20 = 259,123.14 : x
  2. Step 2: Convert to fraction form
    866,287.20/1,299,616.20 = 259,123.14/x
  3. Step 3: Cross multiply
    866,287.20x = 1,299,616.20 × 259,123.14
  4. Step 4: Simplify right side
    866,287.20x = 336,760,630,538.87
  5. Step 5: Solve for x
    x = 336,760,630,538.87/866,287.20
  6. Step 6: Final answer
    x = 388,740.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.