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Finding the Fourth Proportional to 335,244.78, 499,708.98 and 308,340.54

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Solution

The fourth proportional to 335,244.78, 499,708.98 and 308,340.54 is: 459,606.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,244.78 : 499,708.98 = 308,340.54 : x
  2. Step 2: Convert to fraction form
    335,244.78/499,708.98 = 308,340.54/x
  3. Step 3: Cross multiply
    335,244.78x = 499,708.98 × 308,340.54
  4. Step 4: Simplify right side
    335,244.78x = 154,080,536,736.05
  5. Step 5: Solve for x
    x = 154,080,536,736.05/335,244.78
  6. Step 6: Final answer
    x = 459,606.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.