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Finding the Fourth Proportional to 408,044.70, 612,067.05 and 186,860.70

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Solution

The fourth proportional to 408,044.70, 612,067.05 and 186,860.70 is: 280,291.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,044.70 : 612,067.05 = 186,860.70 : x
  2. Step 2: Convert to fraction form
    408,044.70/612,067.05 = 186,860.70/x
  3. Step 3: Cross multiply
    408,044.70x = 612,067.05 × 186,860.70
  4. Step 4: Simplify right side
    408,044.70x = 114,371,277,409.94
  5. Step 5: Solve for x
    x = 114,371,277,409.94/408,044.70
  6. Step 6: Final answer
    x = 280,291.05

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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.