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Finding the Fourth Proportional to 353,396.83, 530,092.81 and 143,031.73

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Solution

The fourth proportional to 353,396.83, 530,092.81 and 143,031.73 is: 214,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,396.83 : 530,092.81 = 143,031.73 : x
  2. Step 2: Convert to fraction form
    353,396.83/530,092.81 = 143,031.73/x
  3. Step 3: Cross multiply
    353,396.83x = 530,092.81 × 143,031.73
  4. Step 4: Simplify right side
    353,396.83x = 75,820,088,309.24
  5. Step 5: Solve for x
    x = 75,820,088,309.24/353,396.83
  6. Step 6: Final answer
    x = 214,546.60

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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.