Home / 1,188,590.20-1,640,366.46-679,193.56

Finding the Fourth Proportional to 1,188,590.20, 1,640,366.46 and 679,193.56

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Solution

The fourth proportional to 1,188,590.20, 1,640,366.46 and 679,193.56 is: 937,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,590.20 : 1,640,366.46 = 679,193.56 : x
  2. Step 2: Convert to fraction form
    1,188,590.20/1,640,366.46 = 679,193.56/x
  3. Step 3: Cross multiply
    1,188,590.20x = 1,640,366.46 × 679,193.56
  4. Step 4: Simplify right side
    1,188,590.20x = 1,114,126,335,672.00
  5. Step 5: Solve for x
    x = 1,114,126,335,672.00/1,188,590.20
  6. Step 6: Final answer
    x = 937,351.10

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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.