Home / 1,211,744.64-1,672,280.64-667,879.68

Finding the Fourth Proportional to 1,211,744.64, 1,672,280.64 and 667,879.68

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Solution

The fourth proportional to 1,211,744.64, 1,672,280.64 and 667,879.68 is: 921,714.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,744.64 : 1,672,280.64 = 667,879.68 : x
  2. Step 2: Convert to fraction form
    1,211,744.64/1,672,280.64 = 667,879.68/x
  3. Step 3: Cross multiply
    1,211,744.64x = 1,672,280.64 × 667,879.68
  4. Step 4: Simplify right side
    1,211,744.64x = 1,116,882,258,713.40
  5. Step 5: Solve for x
    x = 1,116,882,258,713.40/1,211,744.64
  6. Step 6: Final answer
    x = 921,714.21

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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.