Home / 1,209,385.55-1,668,910.19-665,470.44

Finding the Fourth Proportional to 1,209,385.55, 1,668,910.19 and 665,470.44

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Solution

The fourth proportional to 1,209,385.55, 1,668,910.19 and 665,470.44 is: 918,326.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,385.55 : 1,668,910.19 = 665,470.44 : x
  2. Step 2: Convert to fraction form
    1,209,385.55/1,668,910.19 = 665,470.44/x
  3. Step 3: Cross multiply
    1,209,385.55x = 1,668,910.19 × 665,470.44
  4. Step 4: Simplify right side
    1,209,385.55x = 1,110,610,395,132.43
  5. Step 5: Solve for x
    x = 1,110,610,395,132.43/1,209,385.55
  6. Step 6: Final answer
    x = 918,326.16

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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.