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Finding the Fourth Proportional to 483,279.86, 725,157.94 and 217,233.74

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Solution

The fourth proportional to 483,279.86, 725,157.94 and 217,233.74 is: 325,957.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,279.86 : 725,157.94 = 217,233.74 : x
  2. Step 2: Convert to fraction form
    483,279.86/725,157.94 = 217,233.74/x
  3. Step 3: Cross multiply
    483,279.86x = 725,157.94 × 217,233.74
  4. Step 4: Simplify right side
    483,279.86x = 157,528,771,396.90
  5. Step 5: Solve for x
    x = 157,528,771,396.90/483,279.86
  6. Step 6: Final answer
    x = 325,957.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.