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Finding the Fourth Proportional to 329,703.40, 454,986.48 and 178,800.40

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Solution

The fourth proportional to 329,703.40, 454,986.48 and 178,800.40 is: 246,742.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,703.40 : 454,986.48 = 178,800.40 : x
  2. Step 2: Convert to fraction form
    329,703.40/454,986.48 = 178,800.40/x
  3. Step 3: Cross multiply
    329,703.40x = 454,986.48 × 178,800.40
  4. Step 4: Simplify right side
    329,703.40x = 81,351,764,618.59
  5. Step 5: Solve for x
    x = 81,351,764,618.59/329,703.40
  6. Step 6: Final answer
    x = 246,742.27

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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.