Home / 1,272,606.80-1,756,209.20-699,651

Finding the Fourth Proportional to 1,272,606.80, 1,756,209.20 and 699,651

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Solution

The fourth proportional to 1,272,606.80, 1,756,209.20 and 699,651 is: 965,524.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,606.80 : 1,756,209.20 = 699,651 : x
  2. Step 2: Convert to fraction form
    1,272,606.80/1,756,209.20 = 699,651/x
  3. Step 3: Cross multiply
    1,272,606.80x = 1,756,209.20 × 699,651
  4. Step 4: Simplify right side
    1,272,606.80x = 1,228,733,519,490.95
  5. Step 5: Solve for x
    x = 1,228,733,519,490.95/1,272,606.80
  6. Step 6: Final answer
    x = 965,524.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.