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Finding the Fourth Proportional to 262,644.60, 393,189.30 and 173,998.20

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Solution

The fourth proportional to 262,644.60, 393,189.30 and 173,998.20 is: 260,482.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,644.60 : 393,189.30 = 173,998.20 : x
  2. Step 2: Convert to fraction form
    262,644.60/393,189.30 = 173,998.20/x
  3. Step 3: Cross multiply
    262,644.60x = 393,189.30 × 173,998.20
  4. Step 4: Simplify right side
    262,644.60x = 68,414,230,459.26
  5. Step 5: Solve for x
    x = 68,414,230,459.26/262,644.60
  6. Step 6: Final answer
    x = 260,482.15

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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.