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Finding the Fourth Proportional to 663,604.72, 995,114.28 and 190,182.64

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Solution

The fourth proportional to 663,604.72, 995,114.28 and 190,182.64 is: 285,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,604.72 : 995,114.28 = 190,182.64 : x
  2. Step 2: Convert to fraction form
    663,604.72/995,114.28 = 190,182.64/x
  3. Step 3: Cross multiply
    663,604.72x = 995,114.28 × 190,182.64
  4. Step 4: Simplify right side
    663,604.72x = 189,253,460,872.10
  5. Step 5: Solve for x
    x = 189,253,460,872.10/663,604.72
  6. Step 6: Final answer
    x = 285,190.05

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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.