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Finding the Fourth Proportional to 3,214,397.07, 4,822,331.92 and 1,393,067.91

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Solution

The fourth proportional to 3,214,397.07, 4,822,331.92 and 1,393,067.91 is: 2,089,920.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214,397.07 : 4,822,331.92 = 1,393,067.91 : x
  2. Step 2: Convert to fraction form
    3,214,397.07/4,822,331.92 = 1,393,067.91/x
  3. Step 3: Cross multiply
    3,214,397.07x = 4,822,331.92 × 1,393,067.91
  4. Step 4: Simplify right side
    3,214,397.07x = 6,717,835,870,126.60
  5. Step 5: Solve for x
    x = 6,717,835,870,126.60/3,214,397.07
  6. Step 6: Final answer
    x = 2,089,920.98

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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.