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Finding the Fourth Proportional to 293,524.80, 405,266.40 and 217,060.80

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Solution

The fourth proportional to 293,524.80, 405,266.40 and 217,060.80 is: 299,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,524.80 : 405,266.40 = 217,060.80 : x
  2. Step 2: Convert to fraction form
    293,524.80/405,266.40 = 217,060.80/x
  3. Step 3: Cross multiply
    293,524.80x = 405,266.40 × 217,060.80
  4. Step 4: Simplify right side
    293,524.80x = 87,967,448,997.12
  5. Step 5: Solve for x
    x = 87,967,448,997.12/293,524.80
  6. Step 6: Final answer
    x = 299,693.41

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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.