Home / 817,096.59-1,225,841.72-256,131.09

Finding the Fourth Proportional to 817,096.59, 1,225,841.72 and 256,131.09

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Solution

The fourth proportional to 817,096.59, 1,225,841.72 and 256,131.09 is: 384,258.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,096.59 : 1,225,841.72 = 256,131.09 : x
  2. Step 2: Convert to fraction form
    817,096.59/1,225,841.72 = 256,131.09/x
  3. Step 3: Cross multiply
    817,096.59x = 1,225,841.72 × 256,131.09
  4. Step 4: Simplify right side
    817,096.59x = 313,976,174,630.42
  5. Step 5: Solve for x
    x = 313,976,174,630.42/817,096.59
  6. Step 6: Final answer
    x = 384,258.33

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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.