Home / 855,992.57-1,283,985.77-256,951.13

Finding the Fourth Proportional to 855,992.57, 1,283,985.77 and 256,951.13

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Solution

The fourth proportional to 855,992.57, 1,283,985.77 and 256,951.13 is: 385,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,992.57 : 1,283,985.77 = 256,951.13 : x
  2. Step 2: Convert to fraction form
    855,992.57/1,283,985.77 = 256,951.13/x
  3. Step 3: Cross multiply
    855,992.57x = 1,283,985.77 × 256,951.13
  4. Step 4: Simplify right side
    855,992.57x = 329,921,593,220.66
  5. Step 5: Solve for x
    x = 329,921,593,220.66/855,992.57
  6. Step 6: Final answer
    x = 385,425.77

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Double scale
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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.