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Finding the Fourth Proportional to 347,782.32, 479,957.58 and 194,811.57

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Solution

The fourth proportional to 347,782.32, 479,957.58 and 194,811.57 is: 268,850.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,782.32 : 479,957.58 = 194,811.57 : x
  2. Step 2: Convert to fraction form
    347,782.32/479,957.58 = 194,811.57/x
  3. Step 3: Cross multiply
    347,782.32x = 479,957.58 × 194,811.57
  4. Step 4: Simplify right side
    347,782.32x = 93,501,289,693.20
  5. Step 5: Solve for x
    x = 93,501,289,693.20/347,782.32
  6. Step 6: Final answer
    x = 268,850.04

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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.