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Finding the Fourth Proportional to 466,858.51, 644,292.21 and 285,605.18

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Solution

The fourth proportional to 466,858.51, 644,292.21 and 285,605.18 is: 394,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,858.51 : 644,292.21 = 285,605.18 : x
  2. Step 2: Convert to fraction form
    466,858.51/644,292.21 = 285,605.18/x
  3. Step 3: Cross multiply
    466,858.51x = 644,292.21 × 285,605.18
  4. Step 4: Simplify right side
    466,858.51x = 184,013,193,863.37
  5. Step 5: Solve for x
    x = 184,013,193,863.37/466,858.51
  6. Step 6: Final answer
    x = 394,151.95

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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.