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Finding the Fourth Proportional to 323,090.40, 484,441.20 and 165,626.40

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Solution

The fourth proportional to 323,090.40, 484,441.20 and 165,626.40 is: 248,339.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,090.40 : 484,441.20 = 165,626.40 : x
  2. Step 2: Convert to fraction form
    323,090.40/484,441.20 = 165,626.40/x
  3. Step 3: Cross multiply
    323,090.40x = 484,441.20 × 165,626.40
  4. Step 4: Simplify right side
    323,090.40x = 80,236,251,967.68
  5. Step 5: Solve for x
    x = 80,236,251,967.68/323,090.40
  6. Step 6: Final answer
    x = 248,339.94

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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.