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Finding the Fourth Proportional to 431,105.48, 594,910.14 and 240,108.56

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Solution

The fourth proportional to 431,105.48, 594,910.14 and 240,108.56 is: 331,341.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,105.48 : 594,910.14 = 240,108.56 : x
  2. Step 2: Convert to fraction form
    431,105.48/594,910.14 = 240,108.56/x
  3. Step 3: Cross multiply
    431,105.48x = 594,910.14 × 240,108.56
  4. Step 4: Simplify right side
    431,105.48x = 142,843,017,044.80
  5. Step 5: Solve for x
    x = 142,843,017,044.80/431,105.48
  6. Step 6: Final answer
    x = 331,341.22

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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.