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Finding the Fourth Proportional to 329,016.40, 454,042.80 and 178,113.40

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Solution

The fourth proportional to 329,016.40, 454,042.80 and 178,113.40 is: 245,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,016.40 : 454,042.80 = 178,113.40 : x
  2. Step 2: Convert to fraction form
    329,016.40/454,042.80 = 178,113.40/x
  3. Step 3: Cross multiply
    329,016.40x = 454,042.80 × 178,113.40
  4. Step 4: Simplify right side
    329,016.40x = 80,871,106,853.52
  5. Step 5: Solve for x
    x = 80,871,106,853.52/329,016.40
  6. Step 6: Final answer
    x = 245,796.58

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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.