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Finding the Fourth Proportional to 347,767.44, 479,993.76 and 211,846.20

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Solution

The fourth proportional to 347,767.44, 479,993.76 and 211,846.20 is: 292,393.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,767.44 : 479,993.76 = 211,846.20 : x
  2. Step 2: Convert to fraction form
    347,767.44/479,993.76 = 211,846.20/x
  3. Step 3: Cross multiply
    347,767.44x = 479,993.76 × 211,846.20
  4. Step 4: Simplify right side
    347,767.44x = 101,684,854,079.71
  5. Step 5: Solve for x
    x = 101,684,854,079.71/347,767.44
  6. Step 6: Final answer
    x = 292,393.26

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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.