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Finding the Fourth Proportional to 655,779.92, 983,704.77 and 206,535.92

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Solution

The fourth proportional to 655,779.92, 983,704.77 and 206,535.92 is: 309,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,779.92 : 983,704.77 = 206,535.92 : x
  2. Step 2: Convert to fraction form
    655,779.92/983,704.77 = 206,535.92/x
  3. Step 3: Cross multiply
    655,779.92x = 983,704.77 × 206,535.92
  4. Step 4: Simplify right side
    655,779.92x = 203,170,369,680.34
  5. Step 5: Solve for x
    x = 203,170,369,680.34/655,779.92
  6. Step 6: Final answer
    x = 309,814.87

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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.