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Finding the Fourth Proportional to 4,890,855.79, 7,336,620.65 and 2,048,105.71

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Solution

The fourth proportional to 4,890,855.79, 7,336,620.65 and 2,048,105.71 is: 3,072,299.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890,855.79 : 7,336,620.65 = 2,048,105.71 : x
  2. Step 2: Convert to fraction form
    4,890,855.79/7,336,620.65 = 2,048,105.71/x
  3. Step 3: Cross multiply
    4,890,855.79x = 7,336,620.65 × 2,048,105.71
  4. Step 4: Simplify right side
    4,890,855.79x = 15,026,174,645,368.91
  5. Step 5: Solve for x
    x = 15,026,174,645,368.91/4,890,855.79
  6. Step 6: Final answer
    x = 3,072,299.67

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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.