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Finding the Fourth Proportional to 347,732.44, 479,945.48 and 211,811.20

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Solution

The fourth proportional to 347,732.44, 479,945.48 and 211,811.20 is: 292,344.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,732.44 : 479,945.48 = 211,811.20 : x
  2. Step 2: Convert to fraction form
    347,732.44/479,945.48 = 211,811.20/x
  3. Step 3: Cross multiply
    347,732.44x = 479,945.48 × 211,811.20
  4. Step 4: Simplify right side
    347,732.44x = 101,657,828,053.38
  5. Step 5: Solve for x
    x = 101,657,828,053.38/347,732.44
  6. Step 6: Final answer
    x = 292,344.97

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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.