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Finding the Fourth Proportional to 358,066.10, 494,121.35 and 196,921.13

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Solution

The fourth proportional to 358,066.10, 494,121.35 and 196,921.13 is: 271,745.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,066.10 : 494,121.35 = 196,921.13 : x
  2. Step 2: Convert to fraction form
    358,066.10/494,121.35 = 196,921.13/x
  3. Step 3: Cross multiply
    358,066.10x = 494,121.35 × 196,921.13
  4. Step 4: Simplify right side
    358,066.10x = 97,302,931,143.91
  5. Step 5: Solve for x
    x = 97,302,931,143.91/358,066.10
  6. Step 6: Final answer
    x = 271,745.73

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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.