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Finding the Fourth Proportional to 693,863.82, 957,519.63 and 392,051.34

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Solution

The fourth proportional to 693,863.82, 957,519.63 and 392,051.34 is: 541,023.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,863.82 : 957,519.63 = 392,051.34 : x
  2. Step 2: Convert to fraction form
    693,863.82/957,519.63 = 392,051.34/x
  3. Step 3: Cross multiply
    693,863.82x = 957,519.63 × 392,051.34
  4. Step 4: Simplify right side
    693,863.82x = 375,396,854,017.80
  5. Step 5: Solve for x
    x = 375,396,854,017.80/693,863.82
  6. Step 6: Final answer
    x = 541,023.82

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.