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Finding the Fourth Proportional to 693,863.32, 957,518.94 and 392,050.84

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Solution

The fourth proportional to 693,863.32, 957,518.94 and 392,050.84 is: 541,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,863.32 : 957,518.94 = 392,050.84 : x
  2. Step 2: Convert to fraction form
    693,863.32/957,518.94 = 392,050.84/x
  3. Step 3: Cross multiply
    693,863.32x = 957,518.94 × 392,050.84
  4. Step 4: Simplify right side
    693,863.32x = 375,396,104,742.91
  5. Step 5: Solve for x
    x = 375,396,104,742.91/693,863.32
  6. Step 6: Final answer
    x = 541,023.13

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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.