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Finding the Fourth Proportional to 2,841,993.70, 3,921,978.86 and 1,552,833.97

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Solution

The fourth proportional to 2,841,993.70, 3,921,978.86 and 1,552,833.97 is: 2,142,925.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841,993.70 : 3,921,978.86 = 1,552,833.97 : x
  2. Step 2: Convert to fraction form
    2,841,993.70/3,921,978.86 = 1,552,833.97/x
  3. Step 3: Cross multiply
    2,841,993.70x = 3,921,978.86 × 1,552,833.97
  4. Step 4: Simplify right side
    2,841,993.70x = 6,090,182,003,429.87
  5. Step 5: Solve for x
    x = 6,090,182,003,429.87/2,841,993.70
  6. Step 6: Final answer
    x = 2,142,925.93

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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.