Home / 817,079.67-1,225,816.38-256,114.17

Finding the Fourth Proportional to 817,079.67, 1,225,816.38 and 256,114.17

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Solution

The fourth proportional to 817,079.67, 1,225,816.38 and 256,114.17 is: 384,232.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,079.67 : 1,225,816.38 = 256,114.17 : x
  2. Step 2: Convert to fraction form
    817,079.67/1,225,816.38 = 256,114.17/x
  3. Step 3: Cross multiply
    817,079.67x = 1,225,816.38 × 256,114.17
  4. Step 4: Simplify right side
    817,079.67x = 313,948,944,736.11
  5. Step 5: Solve for x
    x = 313,948,944,736.11/817,079.67
  6. Step 6: Final answer
    x = 384,232.97

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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.