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Finding the Fourth Proportional to 336,302.76, 464,015.30 and 221,568.68

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Solution

The fourth proportional to 336,302.76, 464,015.30 and 221,568.68 is: 305,710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,302.76 : 464,015.30 = 221,568.68 : x
  2. Step 2: Convert to fraction form
    336,302.76/464,015.30 = 221,568.68/x
  3. Step 3: Cross multiply
    336,302.76x = 464,015.30 × 221,568.68
  4. Step 4: Simplify right side
    336,302.76x = 102,811,257,520.80
  5. Step 5: Solve for x
    x = 102,811,257,520.80/336,302.76
  6. Step 6: Final answer
    x = 305,710.42

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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.