Home / 865,384.97-1,298,097.50-296,761.32

Finding the Fourth Proportional to 865,384.97, 1,298,097.50 and 296,761.32

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Solution

The fourth proportional to 865,384.97, 1,298,097.50 and 296,761.32 is: 445,148.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,384.97 : 1,298,097.50 = 296,761.32 : x
  2. Step 2: Convert to fraction form
    865,384.97/1,298,097.50 = 296,761.32/x
  3. Step 3: Cross multiply
    865,384.97x = 1,298,097.50 × 296,761.32
  4. Step 4: Simplify right side
    865,384.97x = 385,225,126,104.89
  5. Step 5: Solve for x
    x = 385,225,126,104.89/865,384.97
  6. Step 6: Final answer
    x = 445,148.85

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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.