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Finding the Fourth Proportional to 4,653,142.72, 6,979,714.56 and 1,458,268.48

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Solution

The fourth proportional to 4,653,142.72, 6,979,714.56 and 1,458,268.48 is: 2,187,402.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,653,142.72 : 6,979,714.56 = 1,458,268.48 : x
  2. Step 2: Convert to fraction form
    4,653,142.72/6,979,714.56 = 1,458,268.48/x
  3. Step 3: Cross multiply
    4,653,142.72x = 6,979,714.56 × 1,458,268.48
  4. Step 4: Simplify right side
    4,653,142.72x = 10,178,297,742,245.07
  5. Step 5: Solve for x
    x = 10,178,297,742,245.07/4,653,142.72
  6. Step 6: Final answer
    x = 2,187,402.87

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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.