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Finding the Fourth Proportional to 427,730.31, 590,259.02 and 236,732.31

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Solution

The fourth proportional to 427,730.31, 590,259.02 and 236,732.31 is: 326,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,730.31 : 590,259.02 = 236,732.31 : x
  2. Step 2: Convert to fraction form
    427,730.31/590,259.02 = 236,732.31/x
  3. Step 3: Cross multiply
    427,730.31x = 590,259.02 × 236,732.31
  4. Step 4: Simplify right side
    427,730.31x = 139,733,380,119.28
  5. Step 5: Solve for x
    x = 139,733,380,119.28/427,730.31
  6. Step 6: Final answer
    x = 326,685.71

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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.