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Finding the Fourth Proportional to 297,388.71, 446,083.70 and 209,037.56

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Solution

The fourth proportional to 297,388.71, 446,083.70 and 209,037.56 is: 313,556.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,388.71 : 446,083.70 = 209,037.56 : x
  2. Step 2: Convert to fraction form
    297,388.71/446,083.70 = 209,037.56/x
  3. Step 3: Cross multiply
    297,388.71x = 446,083.70 × 209,037.56
  4. Step 4: Simplify right side
    297,388.71x = 93,248,244,928.17
  5. Step 5: Solve for x
    x = 93,248,244,928.17/297,388.71
  6. Step 6: Final answer
    x = 313,556.78

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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.