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Finding the Fourth Proportional to 547,219.65, 755,175.84 and 343,279.17

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Solution

The fourth proportional to 547,219.65, 755,175.84 and 343,279.17 is: 473,733.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,219.65 : 755,175.84 = 343,279.17 : x
  2. Step 2: Convert to fraction form
    547,219.65/755,175.84 = 343,279.17/x
  3. Step 3: Cross multiply
    547,219.65x = 755,175.84 × 343,279.17
  4. Step 4: Simplify right side
    547,219.65x = 259,236,135,559.25
  5. Step 5: Solve for x
    x = 259,236,135,559.25/547,219.65
  6. Step 6: Final answer
    x = 473,733.24

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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.