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Finding the Fourth Proportional to 655,779.42, 983,704.02 and 206,535.42

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Solution

The fourth proportional to 655,779.42, 983,704.02 and 206,535.42 is: 309,814.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,779.42 : 983,704.02 = 206,535.42 : x
  2. Step 2: Convert to fraction form
    655,779.42/983,704.02 = 206,535.42/x
  3. Step 3: Cross multiply
    655,779.42x = 983,704.02 × 206,535.42
  4. Step 4: Simplify right side
    655,779.42x = 203,169,722,926.39
  5. Step 5: Solve for x
    x = 203,169,722,926.39/655,779.42
  6. Step 6: Final answer
    x = 309,814.12

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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.