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Finding the Fourth Proportional to 5,333,472.83, 8,000,213.15 and 1,289,964.54

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Solution

The fourth proportional to 5,333,472.83, 8,000,213.15 and 1,289,964.54 is: 1,934,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,333,472.83 : 8,000,213.15 = 1,289,964.54 : x
  2. Step 2: Convert to fraction form
    5,333,472.83/8,000,213.15 = 1,289,964.54/x
  3. Step 3: Cross multiply
    5,333,472.83x = 8,000,213.15 × 1,289,964.54
  4. Step 4: Simplify right side
    5,333,472.83x = 10,319,991,275,941.70
  5. Step 5: Solve for x
    x = 10,319,991,275,941.70/5,333,472.83
  6. Step 6: Final answer
    x = 1,934,947.75

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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.