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Finding the Fourth Proportional to 238,241.40, 328,790.39 and 157,528.95

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Solution

The fourth proportional to 238,241.40, 328,790.39 and 157,528.95 is: 217,401.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,241.40 : 328,790.39 = 157,528.95 : x
  2. Step 2: Convert to fraction form
    238,241.40/328,790.39 = 157,528.95/x
  3. Step 3: Cross multiply
    238,241.40x = 328,790.39 × 157,528.95
  4. Step 4: Simplify right side
    238,241.40x = 51,794,004,119.15
  5. Step 5: Solve for x
    x = 51,794,004,119.15/238,241.40
  6. Step 6: Final answer
    x = 217,401.36

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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.