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Finding the Fourth Proportional to 1,400.01, 1,932.15 and 810.69

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Solution

The fourth proportional to 1,400.01, 1,932.15 and 810.69 is: 1,118.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.01 : 1,932.15 = 810.69 : x
  2. Step 2: Convert to fraction form
    1,400.01/1,932.15 = 810.69/x
  3. Step 3: Cross multiply
    1,400.01x = 1,932.15 × 810.69
  4. Step 4: Simplify right side
    1,400.01x = 1,566,374.68
  5. Step 5: Solve for x
    x = 1,566,374.68/1,400.01
  6. Step 6: Final answer
    x = 1,118.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.