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Finding the Fourth Proportional to 6,404,834.30, 8,837,798.42 and 3,825,967.64

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Solution

The fourth proportional to 6,404,834.30, 8,837,798.42 and 3,825,967.64 is: 5,279,313.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,404,834.30 : 8,837,798.42 = 3,825,967.64 : x
  2. Step 2: Convert to fraction form
    6,404,834.30/8,837,798.42 = 3,825,967.64/x
  3. Step 3: Cross multiply
    6,404,834.30x = 8,837,798.42 × 3,825,967.64
  4. Step 4: Simplify right side
    6,404,834.30x = 33,813,130,729,139.05
  5. Step 5: Solve for x
    x = 33,813,130,729,139.05/6,404,834.30
  6. Step 6: Final answer
    x = 5,279,313.90

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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.