Home / 1,330,519.80-1,836,117.54-718,672.80

Finding the Fourth Proportional to 1,330,519.80, 1,836,117.54 and 718,672.80

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Solution

The fourth proportional to 1,330,519.80, 1,836,117.54 and 718,672.80 is: 991,768.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,519.80 : 1,836,117.54 = 718,672.80 : x
  2. Step 2: Convert to fraction form
    1,330,519.80/1,836,117.54 = 718,672.80/x
  3. Step 3: Cross multiply
    1,330,519.80x = 1,836,117.54 × 718,672.80
  4. Step 4: Simplify right side
    1,330,519.80x = 1,319,567,733,600.91
  5. Step 5: Solve for x
    x = 1,319,567,733,600.91/1,330,519.80
  6. Step 6: Final answer
    x = 991,768.58

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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.