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Finding the Fourth Proportional to 3,286,687.70, 4,920,700.35 and 3,286,687.70

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Solution

The fourth proportional to 3,286,687.70, 4,920,700.35 and 3,286,687.70 is: 4,920,700.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286,687.70 : 4,920,700.35 = 3,286,687.70 : x
  2. Step 2: Convert to fraction form
    3,286,687.70/4,920,700.35 = 3,286,687.70/x
  3. Step 3: Cross multiply
    3,286,687.70x = 4,920,700.35 × 3,286,687.70
  4. Step 4: Simplify right side
    3,286,687.70x = 16,172,805,315,730.70
  5. Step 5: Solve for x
    x = 16,172,805,315,730.70/3,286,687.70
  6. Step 6: Final answer
    x = 4,920,700.35

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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.