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Finding the Fourth Proportional to 3,876,275.52, 5,815,333.36 and 1,216,883.52

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Solution

The fourth proportional to 3,876,275.52, 5,815,333.36 and 1,216,883.52 is: 1,825,614.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876,275.52 : 5,815,333.36 = 1,216,883.52 : x
  2. Step 2: Convert to fraction form
    3,876,275.52/5,815,333.36 = 1,216,883.52/x
  3. Step 3: Cross multiply
    3,876,275.52x = 5,815,333.36 × 1,216,883.52
  4. Step 4: Simplify right side
    3,876,275.52x = 7,076,583,329,090.23
  5. Step 5: Solve for x
    x = 7,076,583,329,090.23/3,876,275.52
  6. Step 6: Final answer
    x = 1,825,614.12

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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.