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Finding the Fourth Proportional to 573,502.74, 860,262.21 and 218,536.17

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Solution

The fourth proportional to 573,502.74, 860,262.21 and 218,536.17 is: 327,807.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,502.74 : 860,262.21 = 218,536.17 : x
  2. Step 2: Convert to fraction form
    573,502.74/860,262.21 = 218,536.17/x
  3. Step 3: Cross multiply
    573,502.74x = 860,262.21 × 218,536.17
  4. Step 4: Simplify right side
    573,502.74x = 187,998,408,569.14
  5. Step 5: Solve for x
    x = 187,998,408,569.14/573,502.74
  6. Step 6: Final answer
    x = 327,807.34

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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.