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Finding the Fourth Proportional to 298,058.80, 445,921.80 and 193,082.80

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Solution

The fourth proportional to 298,058.80, 445,921.80 and 193,082.80 is: 288,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,058.80 : 445,921.80 = 193,082.80 : x
  2. Step 2: Convert to fraction form
    298,058.80/445,921.80 = 193,082.80/x
  3. Step 3: Cross multiply
    298,058.80x = 445,921.80 × 193,082.80
  4. Step 4: Simplify right side
    298,058.80x = 86,099,829,725.04
  5. Step 5: Solve for x
    x = 86,099,829,725.04/298,058.80
  6. Step 6: Final answer
    x = 288,868.60

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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.