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Finding the Fourth Proportional to 568,486.92, 784,569.75 and 326,779.68

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Solution

The fourth proportional to 568,486.92, 784,569.75 and 326,779.68 is: 450,989.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,486.92 : 784,569.75 = 326,779.68 : x
  2. Step 2: Convert to fraction form
    568,486.92/784,569.75 = 326,779.68/x
  3. Step 3: Cross multiply
    568,486.92x = 784,569.75 × 326,779.68
  4. Step 4: Simplify right side
    568,486.92x = 256,381,451,842.68
  5. Step 5: Solve for x
    x = 256,381,451,842.68/568,486.92
  6. Step 6: Final answer
    x = 450,989.18

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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.