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Finding the Fourth Proportional to 347,114.58, 479,011.78 and 196,211.58

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Solution

The fourth proportional to 347,114.58, 479,011.78 and 196,211.58 is: 270,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,114.58 : 479,011.78 = 196,211.58 : x
  2. Step 2: Convert to fraction form
    347,114.58/479,011.78 = 196,211.58/x
  3. Step 3: Cross multiply
    347,114.58x = 479,011.78 × 196,211.58
  4. Step 4: Simplify right side
    347,114.58x = 93,987,658,192.41
  5. Step 5: Solve for x
    x = 93,987,658,192.41/347,114.58
  6. Step 6: Final answer
    x = 270,768.40

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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.