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Finding the Fourth Proportional to 324,246.30, 486,139.05 and 146,838.30

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Solution

The fourth proportional to 324,246.30, 486,139.05 and 146,838.30 is: 220,153.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,246.30 : 486,139.05 = 146,838.30 : x
  2. Step 2: Convert to fraction form
    324,246.30/486,139.05 = 146,838.30/x
  3. Step 3: Cross multiply
    324,246.30x = 486,139.05 × 146,838.30
  4. Step 4: Simplify right side
    324,246.30x = 71,383,831,665.62
  5. Step 5: Solve for x
    x = 71,383,831,665.62/324,246.30
  6. Step 6: Final answer
    x = 220,153.11

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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.