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Finding the Fourth Proportional to 1,721,000.10, 2,581,401.72 and 656,149.80

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Solution

The fourth proportional to 1,721,000.10, 2,581,401.72 and 656,149.80 is: 984,187.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721,000.10 : 2,581,401.72 = 656,149.80 : x
  2. Step 2: Convert to fraction form
    1,721,000.10/2,581,401.72 = 656,149.80/x
  3. Step 3: Cross multiply
    1,721,000.10x = 2,581,401.72 × 656,149.80
  4. Step 4: Simplify right side
    1,721,000.10x = 1,693,786,222,297.66
  5. Step 5: Solve for x
    x = 1,693,786,222,297.66/1,721,000.10
  6. Step 6: Final answer
    x = 984,187.17

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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.