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Finding the Fourth Proportional to 353,344.03, 487,888.45 and 271,542.70

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Solution

The fourth proportional to 353,344.03, 487,888.45 and 271,542.70 is: 374,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,344.03 : 487,888.45 = 271,542.70 : x
  2. Step 2: Convert to fraction form
    353,344.03/487,888.45 = 271,542.70/x
  3. Step 3: Cross multiply
    353,344.03x = 487,888.45 × 271,542.70
  4. Step 4: Simplify right side
    353,344.03x = 132,482,546,942.82
  5. Step 5: Solve for x
    x = 132,482,546,942.82/353,344.03
  6. Step 6: Final answer
    x = 374,939.26

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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.