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Finding the Fourth Proportional to 3,205,472.72, 4,808,986.68 and 961,610.72

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Solution

The fourth proportional to 3,205,472.72, 4,808,986.68 and 961,610.72 is: 1,442,649.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205,472.72 : 4,808,986.68 = 961,610.72 : x
  2. Step 2: Convert to fraction form
    3,205,472.72/4,808,986.68 = 961,610.72/x
  3. Step 3: Cross multiply
    3,205,472.72x = 4,808,986.68 × 961,610.72
  4. Step 4: Simplify right side
    3,205,472.72x = 4,624,373,143,825.21
  5. Step 5: Solve for x
    x = 4,624,373,143,825.21/3,205,472.72
  6. Step 6: Final answer
    x = 1,442,649.35

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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.