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Finding the Fourth Proportional to 3,567,406.88, 4,921,620.16 and 2,038,693.92

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Solution

The fourth proportional to 3,567,406.88, 4,921,620.16 and 2,038,693.92 is: 2,812,596.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,567,406.88 : 4,921,620.16 = 2,038,693.92 : x
  2. Step 2: Convert to fraction form
    3,567,406.88/4,921,620.16 = 2,038,693.92/x
  3. Step 3: Cross multiply
    3,567,406.88x = 4,921,620.16 × 2,038,693.92
  4. Step 4: Simplify right side
    3,567,406.88x = 10,033,677,096,741.43
  5. Step 5: Solve for x
    x = 10,033,677,096,741.43/3,567,406.88
  6. Step 6: Final answer
    x = 2,812,596.78

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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.