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Finding the Fourth Proportional to 663,160.48, 993,908.83 and 283,635.79

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Solution

The fourth proportional to 663,160.48, 993,908.83 and 283,635.79 is: 425,097.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,160.48 : 993,908.83 = 283,635.79 : x
  2. Step 2: Convert to fraction form
    663,160.48/993,908.83 = 283,635.79/x
  3. Step 3: Cross multiply
    663,160.48x = 993,908.83 × 283,635.79
  4. Step 4: Simplify right side
    663,160.48x = 281,908,116,185.03
  5. Step 5: Solve for x
    x = 281,908,116,185.03/663,160.48
  6. Step 6: Final answer
    x = 425,097.88

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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.