Home / 1,209,033.92-1,668,466.88-665,158.07

Finding the Fourth Proportional to 1,209,033.92, 1,668,466.88 and 665,158.07

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Solution

The fourth proportional to 1,209,033.92, 1,668,466.88 and 665,158.07 is: 917,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,033.92 : 1,668,466.88 = 665,158.07 : x
  2. Step 2: Convert to fraction form
    1,209,033.92/1,668,466.88 = 665,158.07/x
  3. Step 3: Cross multiply
    1,209,033.92x = 1,668,466.88 × 665,158.07
  4. Step 4: Simplify right side
    1,209,033.92x = 1,109,794,198,091.60
  5. Step 5: Solve for x
    x = 1,109,794,198,091.60/1,209,033.92
  6. Step 6: Final answer
    x = 917,918.17

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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.