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Finding the Fourth Proportional to 427,957.95, 590,581.94 and 236,971.34

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Solution

The fourth proportional to 427,957.95, 590,581.94 and 236,971.34 is: 327,020.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,957.95 : 590,581.94 = 236,971.34 : x
  2. Step 2: Convert to fraction form
    427,957.95/590,581.94 = 236,971.34/x
  3. Step 3: Cross multiply
    427,957.95x = 590,581.94 × 236,971.34
  4. Step 4: Simplify right side
    427,957.95x = 139,950,991,778.52
  5. Step 5: Solve for x
    x = 139,950,991,778.52/427,957.95
  6. Step 6: Final answer
    x = 327,020.43

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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.