Home / 1,330,577.80-1,836,198.07-718,730.55

Finding the Fourth Proportional to 1,330,577.80, 1,836,198.07 and 718,730.55

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Solution

The fourth proportional to 1,330,577.80, 1,836,198.07 and 718,730.55 is: 991,848.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,577.80 : 1,836,198.07 = 718,730.55 : x
  2. Step 2: Convert to fraction form
    1,330,577.80/1,836,198.07 = 718,730.55/x
  3. Step 3: Cross multiply
    1,330,577.80x = 1,836,198.07 × 718,730.55
  4. Step 4: Simplify right side
    1,330,577.80x = 1,319,731,646,963.21
  5. Step 5: Solve for x
    x = 1,319,731,646,963.21/1,330,577.80
  6. Step 6: Final answer
    x = 991,848.54

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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.