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Finding the Fourth Proportional to 321,624.08, 443,695.56 and 200,795.12

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Solution

The fourth proportional to 321,624.08, 443,695.56 and 200,795.12 is: 277,006.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,624.08 : 443,695.56 = 200,795.12 : x
  2. Step 2: Convert to fraction form
    321,624.08/443,695.56 = 200,795.12/x
  3. Step 3: Cross multiply
    321,624.08x = 443,695.56 × 200,795.12
  4. Step 4: Simplify right side
    321,624.08x = 89,091,903,213.67
  5. Step 5: Solve for x
    x = 89,091,903,213.67/321,624.08
  6. Step 6: Final answer
    x = 277,006.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.