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Finding the Fourth Proportional to 501,670.19, 752,620.22 and 217,408.46

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Solution

The fourth proportional to 501,670.19, 752,620.22 and 217,408.46 is: 326,162.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,670.19 : 752,620.22 = 217,408.46 : x
  2. Step 2: Convert to fraction form
    501,670.19/752,620.22 = 217,408.46/x
  3. Step 3: Cross multiply
    501,670.19x = 752,620.22 × 217,408.46
  4. Step 4: Simplify right side
    501,670.19x = 163,625,998,144.92
  5. Step 5: Solve for x
    x = 163,625,998,144.92/501,670.19
  6. Step 6: Final answer
    x = 326,162.49

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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.