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Finding the Fourth Proportional to 298,471.50, 447,425.91 and 148,570.11

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Solution

The fourth proportional to 298,471.50, 447,425.91 and 148,570.11 is: 222,715.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,471.50 : 447,425.91 = 148,570.11 : x
  2. Step 2: Convert to fraction form
    298,471.50/447,425.91 = 148,570.11/x
  3. Step 3: Cross multiply
    298,471.50x = 447,425.91 × 148,570.11
  4. Step 4: Simplify right side
    298,471.50x = 66,474,116,665.55
  5. Step 5: Solve for x
    x = 66,474,116,665.55/298,471.50
  6. Step 6: Final answer
    x = 222,715.12

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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.