Home / 1,209,050.34-1,668,489.38-665,174.44

Finding the Fourth Proportional to 1,209,050.34, 1,668,489.38 and 665,174.44

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Solution

The fourth proportional to 1,209,050.34, 1,668,489.38 and 665,174.44 is: 917,940.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,050.34 : 1,668,489.38 = 665,174.44 : x
  2. Step 2: Convert to fraction form
    1,209,050.34/1,668,489.38 = 665,174.44/x
  3. Step 3: Cross multiply
    1,209,050.34x = 1,668,489.38 × 665,174.44
  4. Step 4: Simplify right side
    1,209,050.34x = 1,109,836,488,987.45
  5. Step 5: Solve for x
    x = 1,109,836,488,987.45/1,209,050.34
  6. Step 6: Final answer
    x = 917,940.68

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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.