Home / 814,755.36-1,221,394.32-440,340.96

Finding the Fourth Proportional to 814,755.36, 1,221,394.32 and 440,340.96

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Solution

The fourth proportional to 814,755.36, 1,221,394.32 and 440,340.96 is: 660,112.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,755.36 : 1,221,394.32 = 440,340.96 : x
  2. Step 2: Convert to fraction form
    814,755.36/1,221,394.32 = 440,340.96/x
  3. Step 3: Cross multiply
    814,755.36x = 1,221,394.32 × 440,340.96
  4. Step 4: Simplify right side
    814,755.36x = 537,829,947,407.35
  5. Step 5: Solve for x
    x = 537,829,947,407.35/814,755.36
  6. Step 6: Final answer
    x = 660,112.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.