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Finding the Fourth Proportional to 1,268,816, 1,751,121.60 and 732,272

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Solution

The fourth proportional to 1,268,816, 1,751,121.60 and 732,272 is: 1,010,625.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,816 : 1,751,121.60 = 732,272 : x
  2. Step 2: Convert to fraction form
    1,268,816/1,751,121.60 = 732,272/x
  3. Step 3: Cross multiply
    1,268,816x = 1,751,121.60 × 732,272
  4. Step 4: Simplify right side
    1,268,816x = 1,282,297,316,275.20
  5. Step 5: Solve for x
    x = 1,282,297,316,275.20/1,268,816
  6. Step 6: Final answer
    x = 1,010,625.12

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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.