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Finding the Fourth Proportional to 329,279.46, 454,405.59 and 178,376.46

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Solution

The fourth proportional to 329,279.46, 454,405.59 and 178,376.46 is: 246,159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,279.46 : 454,405.59 = 178,376.46 : x
  2. Step 2: Convert to fraction form
    329,279.46/454,405.59 = 178,376.46/x
  3. Step 3: Cross multiply
    329,279.46x = 454,405.59 × 178,376.46
  4. Step 4: Simplify right side
    329,279.46x = 81,055,260,548.41
  5. Step 5: Solve for x
    x = 81,055,260,548.41/329,279.46
  6. Step 6: Final answer
    x = 246,159.48

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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.