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Finding the Fourth Proportional to 303,235.76, 454,387.08 and 178,439.60

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Solution

The fourth proportional to 303,235.76, 454,387.08 and 178,439.60 is: 267,384.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,235.76 : 454,387.08 = 178,439.60 : x
  2. Step 2: Convert to fraction form
    303,235.76/454,387.08 = 178,439.60/x
  3. Step 3: Cross multiply
    303,235.76x = 454,387.08 × 178,439.60
  4. Step 4: Simplify right side
    303,235.76x = 81,080,648,800.37
  5. Step 5: Solve for x
    x = 81,080,648,800.37/303,235.76
  6. Step 6: Final answer
    x = 267,384.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.