Home / 2,876,218.47-3,970,618.48-1,788,840.55

Finding the Fourth Proportional to 2,876,218.47, 3,970,618.48 and 1,788,840.55

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Solution

The fourth proportional to 2,876,218.47, 3,970,618.48 and 1,788,840.55 is: 2,469,493.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876,218.47 : 3,970,618.48 = 1,788,840.55 : x
  2. Step 2: Convert to fraction form
    2,876,218.47/3,970,618.48 = 1,788,840.55/x
  3. Step 3: Cross multiply
    2,876,218.47x = 3,970,618.48 × 1,788,840.55
  4. Step 4: Simplify right side
    2,876,218.47x = 7,102,803,352,802.69
  5. Step 5: Solve for x
    x = 7,102,803,352,802.69/2,876,218.47
  6. Step 6: Final answer
    x = 2,469,493.69

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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.