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Finding the Fourth Proportional to 471,015.62, 649,987.66 and 267,085.16

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Solution

The fourth proportional to 471,015.62, 649,987.66 and 267,085.16 is: 368,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,015.62 : 649,987.66 = 267,085.16 : x
  2. Step 2: Convert to fraction form
    471,015.62/649,987.66 = 267,085.16/x
  3. Step 3: Cross multiply
    471,015.62x = 649,987.66 × 267,085.16
  4. Step 4: Simplify right side
    471,015.62x = 173,602,053,583.76
  5. Step 5: Solve for x
    x = 173,602,053,583.76/471,015.62
  6. Step 6: Final answer
    x = 368,569.64

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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.