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Finding the Fourth Proportional to 454,067.81, 626,488.86 and 316,092.11

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Solution

The fourth proportional to 454,067.81, 626,488.86 and 316,092.11 is: 436,120.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,067.81 : 626,488.86 = 316,092.11 : x
  2. Step 2: Convert to fraction form
    454,067.81/626,488.86 = 316,092.11/x
  3. Step 3: Cross multiply
    454,067.81x = 626,488.86 × 316,092.11
  4. Step 4: Simplify right side
    454,067.81x = 198,028,185,648.90
  5. Step 5: Solve for x
    x = 198,028,185,648.90/454,067.81
  6. Step 6: Final answer
    x = 436,120.29

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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.