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Finding the Fourth Proportional to 599,766.39, 899,807.12 and 215,554.02

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Solution

The fourth proportional to 599,766.39, 899,807.12 and 215,554.02 is: 323,387.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,766.39 : 899,807.12 = 215,554.02 : x
  2. Step 2: Convert to fraction form
    599,766.39/899,807.12 = 215,554.02/x
  3. Step 3: Cross multiply
    599,766.39x = 899,807.12 × 215,554.02
  4. Step 4: Simplify right side
    599,766.39x = 193,957,041,940.62
  5. Step 5: Solve for x
    x = 193,957,041,940.62/599,766.39
  6. Step 6: Final answer
    x = 323,387.65

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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.