Home / 400,976.90-553,348.13-219,695.69

Finding the Fourth Proportional to 400,976.90, 553,348.13 and 219,695.69

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Solution

The fourth proportional to 400,976.90, 553,348.13 and 219,695.69 is: 303,180.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,976.90 : 553,348.13 = 219,695.69 : x
  2. Step 2: Convert to fraction form
    400,976.90/553,348.13 = 219,695.69/x
  3. Step 3: Cross multiply
    400,976.90x = 553,348.13 × 219,695.69
  4. Step 4: Simplify right side
    400,976.90x = 121,568,199,515.45
  5. Step 5: Solve for x
    x = 121,568,199,515.45/400,976.90
  6. Step 6: Final answer
    x = 303,180.06

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1.5x scale

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.