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Finding the Fourth Proportional to 476,871.48, 715,149.27 and 192,488.58

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Solution

The fourth proportional to 476,871.48, 715,149.27 and 192,488.58 is: 288,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,871.48 : 715,149.27 = 192,488.58 : x
  2. Step 2: Convert to fraction form
    476,871.48/715,149.27 = 192,488.58/x
  3. Step 3: Cross multiply
    476,871.48x = 715,149.27 × 192,488.58
  4. Step 4: Simplify right side
    476,871.48x = 137,658,067,470.34
  5. Step 5: Solve for x
    x = 137,658,067,470.34/476,871.48
  6. Step 6: Final answer
    x = 288,669.11

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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.