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Finding the Fourth Proportional to 275,353.60, 412,933.20 and 97,866.40

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Solution

The fourth proportional to 275,353.60, 412,933.20 and 97,866.40 is: 146,765.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,353.60 : 412,933.20 = 97,866.40 : x
  2. Step 2: Convert to fraction form
    275,353.60/412,933.20 = 97,866.40/x
  3. Step 3: Cross multiply
    275,353.60x = 412,933.20 × 97,866.40
  4. Step 4: Simplify right side
    275,353.60x = 40,412,285,724.48
  5. Step 5: Solve for x
    x = 40,412,285,724.48/275,353.60
  6. Step 6: Final answer
    x = 146,765.05

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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.