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Finding the Fourth Proportional to 347,740.60, 521,610.90 and 179,260.60

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Solution

The fourth proportional to 347,740.60, 521,610.90 and 179,260.60 is: 268,890.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,740.60 : 521,610.90 = 179,260.60 : x
  2. Step 2: Convert to fraction form
    347,740.60/521,610.90 = 179,260.60/x
  3. Step 3: Cross multiply
    347,740.60x = 521,610.90 × 179,260.60
  4. Step 4: Simplify right side
    347,740.60x = 93,504,282,900.54
  5. Step 5: Solve for x
    x = 93,504,282,900.54/347,740.60
  6. Step 6: Final answer
    x = 268,890.90

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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.