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Finding the Fourth Proportional to 324,008.60, 486,158.70 and 146,424.20

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Solution

The fourth proportional to 324,008.60, 486,158.70 and 146,424.20 is: 219,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,008.60 : 486,158.70 = 146,424.20 : x
  2. Step 2: Convert to fraction form
    324,008.60/486,158.70 = 146,424.20/x
  3. Step 3: Cross multiply
    324,008.60x = 486,158.70 × 146,424.20
  4. Step 4: Simplify right side
    324,008.60x = 71,185,398,720.54
  5. Step 5: Solve for x
    x = 71,185,398,720.54/324,008.60
  6. Step 6: Final answer
    x = 219,702.19

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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.