Home / 1,209,070.44-1,668,517.11-665,194.59

Finding the Fourth Proportional to 1,209,070.44, 1,668,517.11 and 665,194.59

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Solution

The fourth proportional to 1,209,070.44, 1,668,517.11 and 665,194.59 is: 917,968.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,070.44 : 1,668,517.11 = 665,194.59 : x
  2. Step 2: Convert to fraction form
    1,209,070.44/1,668,517.11 = 665,194.59/x
  3. Step 3: Cross multiply
    1,209,070.44x = 1,668,517.11 × 665,194.59
  4. Step 4: Simplify right side
    1,209,070.44x = 1,109,888,554,894.43
  5. Step 5: Solve for x
    x = 1,109,888,554,894.43/1,209,070.44
  6. Step 6: Final answer
    x = 917,968.48

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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.