Home / 1,207,396.80-1,811,095.20-647,524.80

Finding the Fourth Proportional to 1,207,396.80, 1,811,095.20 and 647,524.80

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Solution

The fourth proportional to 1,207,396.80, 1,811,095.20 and 647,524.80 is: 971,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,396.80 : 1,811,095.20 = 647,524.80 : x
  2. Step 2: Convert to fraction form
    1,207,396.80/1,811,095.20 = 647,524.80/x
  3. Step 3: Cross multiply
    1,207,396.80x = 1,811,095.20 × 647,524.80
  4. Step 4: Simplify right side
    1,207,396.80x = 1,172,729,057,160.96
  5. Step 5: Solve for x
    x = 1,172,729,057,160.96/1,207,396.80
  6. Step 6: Final answer
    x = 971,287.20

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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.