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Finding the Fourth Proportional to 275,322.60, 412,983.90 and 170,346.60

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Solution

The fourth proportional to 275,322.60, 412,983.90 and 170,346.60 is: 255,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,322.60 : 412,983.90 = 170,346.60 : x
  2. Step 2: Convert to fraction form
    275,322.60/412,983.90 = 170,346.60/x
  3. Step 3: Cross multiply
    275,322.60x = 412,983.90 × 170,346.60
  4. Step 4: Simplify right side
    275,322.60x = 70,350,403,219.74
  5. Step 5: Solve for x
    x = 70,350,403,219.74/275,322.60
  6. Step 6: Final answer
    x = 255,519.90

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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.