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Finding the Fourth Proportional to 353,660.75, 530,193.55 and 153,830.62

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Solution

The fourth proportional to 353,660.75, 530,193.55 and 153,830.62 is: 230,616.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,660.75 : 530,193.55 = 153,830.62 : x
  2. Step 2: Convert to fraction form
    353,660.75/530,193.55 = 153,830.62/x
  3. Step 3: Cross multiply
    353,660.75x = 530,193.55 × 153,830.62
  4. Step 4: Simplify right side
    353,660.75x = 81,560,002,516.50
  5. Step 5: Solve for x
    x = 81,560,002,516.50/353,660.75
  6. Step 6: Final answer
    x = 230,616.49

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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.