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Finding the Fourth Proportional to 1,929,605.76, 2,662,536.96 and 1,070,029.44

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Solution

The fourth proportional to 1,929,605.76, 2,662,536.96 and 1,070,029.44 is: 1,476,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929,605.76 : 2,662,536.96 = 1,070,029.44 : x
  2. Step 2: Convert to fraction form
    1,929,605.76/2,662,536.96 = 1,070,029.44/x
  3. Step 3: Cross multiply
    1,929,605.76x = 2,662,536.96 × 1,070,029.44
  4. Step 4: Simplify right side
    1,929,605.76x = 2,848,992,932,288.10
  5. Step 5: Solve for x
    x = 2,848,992,932,288.10/1,929,605.76
  6. Step 6: Final answer
    x = 1,476,463.74

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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.