Home / 1,181,285.25-1,630,329.11-665,139.73

Finding the Fourth Proportional to 1,181,285.25, 1,630,329.11 and 665,139.73

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Solution

The fourth proportional to 1,181,285.25, 1,630,329.11 and 665,139.73 is: 917,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,285.25 : 1,630,329.11 = 665,139.73 : x
  2. Step 2: Convert to fraction form
    1,181,285.25/1,630,329.11 = 665,139.73/x
  3. Step 3: Cross multiply
    1,181,285.25x = 1,630,329.11 × 665,139.73
  4. Step 4: Simplify right side
    1,181,285.25x = 1,084,396,656,072.43
  5. Step 5: Solve for x
    x = 1,084,396,656,072.43/1,181,285.25
  6. Step 6: Final answer
    x = 917,980.35

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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.