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Finding the Fourth Proportional to 329,217.30, 454,356.74 and 185,986.56

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Solution

The fourth proportional to 329,217.30, 454,356.74 and 185,986.56 is: 256,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,217.30 : 454,356.74 = 185,986.56 : x
  2. Step 2: Convert to fraction form
    329,217.30/454,356.74 = 185,986.56/x
  3. Step 3: Cross multiply
    329,217.30x = 454,356.74 × 185,986.56
  4. Step 4: Simplify right side
    329,217.30x = 84,504,247,085.41
  5. Step 5: Solve for x
    x = 84,504,247,085.41/329,217.30
  6. Step 6: Final answer
    x = 256,682.28

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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.