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Finding the Fourth Proportional to 347,358.96, 479,445.48 and 196,543.44

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Solution

The fourth proportional to 347,358.96, 479,445.48 and 196,543.44 is: 271,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,358.96 : 479,445.48 = 196,543.44 : x
  2. Step 2: Convert to fraction form
    347,358.96/479,445.48 = 196,543.44/x
  3. Step 3: Cross multiply
    347,358.96x = 479,445.48 × 196,543.44
  4. Step 4: Simplify right side
    347,358.96x = 94,231,863,931.65
  5. Step 5: Solve for x
    x = 94,231,863,931.65/347,358.96
  6. Step 6: Final answer
    x = 271,280.94

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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.