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Finding the Fourth Proportional to 323,065.96, 445,798.82 and 187,143.57

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Solution

The fourth proportional to 323,065.96, 445,798.82 and 187,143.57 is: 258,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,065.96 : 445,798.82 = 187,143.57 : x
  2. Step 2: Convert to fraction form
    323,065.96/445,798.82 = 187,143.57/x
  3. Step 3: Cross multiply
    323,065.96x = 445,798.82 × 187,143.57
  4. Step 4: Simplify right side
    323,065.96x = 83,428,382,676.59
  5. Step 5: Solve for x
    x = 83,428,382,676.59/323,065.96
  6. Step 6: Final answer
    x = 258,239.47

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1.5x scale

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.