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Finding the Fourth Proportional to 6,496,890.63, 9,745,309.38 and 1,639,208.51

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Solution

The fourth proportional to 6,496,890.63, 9,745,309.38 and 1,639,208.51 is: 2,458,806.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,496,890.63 : 9,745,309.38 = 1,639,208.51 : x
  2. Step 2: Convert to fraction form
    6,496,890.63/9,745,309.38 = 1,639,208.51/x
  3. Step 3: Cross multiply
    6,496,890.63x = 9,745,309.38 × 1,639,208.51
  4. Step 4: Simplify right side
    6,496,890.63x = 15,974,594,068,278.83
  5. Step 5: Solve for x
    x = 15,974,594,068,278.83/6,496,890.63
  6. Step 6: Final answer
    x = 2,458,806.06

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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.