Home / 817,849.71-1,226,968.56-256,884.21

Finding the Fourth Proportional to 817,849.71, 1,226,968.56 and 256,884.21

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Solution

The fourth proportional to 817,849.71, 1,226,968.56 and 256,884.21 is: 385,387.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,849.71 : 1,226,968.56 = 256,884.21 : x
  2. Step 2: Convert to fraction form
    817,849.71/1,226,968.56 = 256,884.21/x
  3. Step 3: Cross multiply
    817,849.71x = 1,226,968.56 × 256,884.21
  4. Step 4: Simplify right side
    817,849.71x = 315,188,849,230.44
  5. Step 5: Solve for x
    x = 315,188,849,230.44/817,849.71
  6. Step 6: Final answer
    x = 385,387.25

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Similar ratio
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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.