Home / 1,208,976.85-1,668,398.88-657,704.56

Finding the Fourth Proportional to 1,208,976.85, 1,668,398.88 and 657,704.56

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Solution

The fourth proportional to 1,208,976.85, 1,668,398.88 and 657,704.56 is: 907,638.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,976.85 : 1,668,398.88 = 657,704.56 : x
  2. Step 2: Convert to fraction form
    1,208,976.85/1,668,398.88 = 657,704.56/x
  3. Step 3: Cross multiply
    1,208,976.85x = 1,668,398.88 × 657,704.56
  4. Step 4: Simplify right side
    1,208,976.85x = 1,097,313,551,274.89
  5. Step 5: Solve for x
    x = 1,097,313,551,274.89/1,208,976.85
  6. Step 6: Final answer
    x = 907,638.18

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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.