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Finding the Fourth Proportional to 263,960.64, 364,215.69 and 156,491.46

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Solution

The fourth proportional to 263,960.64, 364,215.69 and 156,491.46 is: 215,928.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,960.64 : 364,215.69 = 156,491.46 : x
  2. Step 2: Convert to fraction form
    263,960.64/364,215.69 = 156,491.46/x
  3. Step 3: Cross multiply
    263,960.64x = 364,215.69 × 156,491.46
  4. Step 4: Simplify right side
    263,960.64x = 56,996,645,083.01
  5. Step 5: Solve for x
    x = 56,996,645,083.01/263,960.64
  6. Step 6: Final answer
    x = 215,928.58

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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.