Home / 855,864.66-1,283,795.78-256,824.84

Finding the Fourth Proportional to 855,864.66, 1,283,795.78 and 256,824.84

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Solution

The fourth proportional to 855,864.66, 1,283,795.78 and 256,824.84 is: 385,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,864.66 : 1,283,795.78 = 256,824.84 : x
  2. Step 2: Convert to fraction form
    855,864.66/1,283,795.78 = 256,824.84/x
  3. Step 3: Cross multiply
    855,864.66x = 1,283,795.78 × 256,824.84
  4. Step 4: Simplify right side
    855,864.66x = 329,710,645,791.18
  5. Step 5: Solve for x
    x = 329,710,645,791.18/855,864.66
  6. Step 6: Final answer
    x = 385,236.90

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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.