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Finding the Fourth Proportional to 427,871.82, 590,463.11 and 236,897.51

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Solution

The fourth proportional to 427,871.82, 590,463.11 and 236,897.51 is: 326,918.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,871.82 : 590,463.11 = 236,897.51 : x
  2. Step 2: Convert to fraction form
    427,871.82/590,463.11 = 236,897.51/x
  3. Step 3: Cross multiply
    427,871.82x = 590,463.11 × 236,897.51
  4. Step 4: Simplify right side
    427,871.82x = 139,879,236,369.05
  5. Step 5: Solve for x
    x = 139,879,236,369.05/427,871.82
  6. Step 6: Final answer
    x = 326,918.55

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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.