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Finding the Fourth Proportional to 5,197,879.88, 7,781,616.12 and 3,032,283.32

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Solution

The fourth proportional to 5,197,879.88, 7,781,616.12 and 3,032,283.32 is: 4,539,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197,879.88 : 7,781,616.12 = 3,032,283.32 : x
  2. Step 2: Convert to fraction form
    5,197,879.88/7,781,616.12 = 3,032,283.32/x
  3. Step 3: Cross multiply
    5,197,879.88x = 7,781,616.12 × 3,032,283.32
  4. Step 4: Simplify right side
    5,197,879.88x = 23,596,064,763,319.12
  5. Step 5: Solve for x
    x = 23,596,064,763,319.12/5,197,879.88
  6. Step 6: Final answer
    x = 4,539,555.61

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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.