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Finding the Fourth Proportional to 269,065.28, 371,353.44 and 155,953.28

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Solution

The fourth proportional to 269,065.28, 371,353.44 and 155,953.28 is: 215,240.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,065.28 : 371,353.44 = 155,953.28 : x
  2. Step 2: Convert to fraction form
    269,065.28/371,353.44 = 155,953.28/x
  3. Step 3: Cross multiply
    269,065.28x = 371,353.44 × 155,953.28
  4. Step 4: Simplify right side
    269,065.28x = 57,913,787,007.28
  5. Step 5: Solve for x
    x = 57,913,787,007.28/269,065.28
  6. Step 6: Final answer
    x = 215,240.65

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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.