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Finding the Fourth Proportional to 427,062.72, 589,323.43 and 236,063.81

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Solution

The fourth proportional to 427,062.72, 589,323.43 and 236,063.81 is: 325,755.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,062.72 : 589,323.43 = 236,063.81 : x
  2. Step 2: Convert to fraction form
    427,062.72/589,323.43 = 236,063.81/x
  3. Step 3: Cross multiply
    427,062.72x = 589,323.43 × 236,063.81
  4. Step 4: Simplify right side
    427,062.72x = 139,117,935,976.46
  5. Step 5: Solve for x
    x = 139,117,935,976.46/427,062.72
  6. Step 6: Final answer
    x = 325,755.28

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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.