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Finding the Fourth Proportional to 353,195.73, 487,590.71 and 272,441.97

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Solution

The fourth proportional to 353,195.73, 487,590.71 and 272,441.97 is: 376,109.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,195.73 : 487,590.71 = 272,441.97 : x
  2. Step 2: Convert to fraction form
    353,195.73/487,590.71 = 272,441.97/x
  3. Step 3: Cross multiply
    353,195.73x = 487,590.71 × 272,441.97
  4. Step 4: Simplify right side
    353,195.73x = 132,840,172,223.89
  5. Step 5: Solve for x
    x = 132,840,172,223.89/353,195.73
  6. Step 6: Final answer
    x = 376,109.22

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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.