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Finding the Fourth Proportional to 331,065.76, 456,839.14 and 185,838.28

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Solution

The fourth proportional to 331,065.76, 456,839.14 and 185,838.28 is: 256,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,065.76 : 456,839.14 = 185,838.28 : x
  2. Step 2: Convert to fraction form
    331,065.76/456,839.14 = 185,838.28/x
  3. Step 3: Cross multiply
    331,065.76x = 456,839.14 × 185,838.28
  4. Step 4: Simplify right side
    331,065.76x = 84,898,200,014.28
  5. Step 5: Solve for x
    x = 84,898,200,014.28/331,065.76
  6. Step 6: Final answer
    x = 256,439.08

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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.