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Finding the Fourth Proportional to 298,889.10, 448,333.65 and 239,840.10

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Solution

The fourth proportional to 298,889.10, 448,333.65 and 239,840.10 is: 359,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,889.10 : 448,333.65 = 239,840.10 : x
  2. Step 2: Convert to fraction form
    298,889.10/448,333.65 = 239,840.10/x
  3. Step 3: Cross multiply
    298,889.10x = 448,333.65 × 239,840.10
  4. Step 4: Simplify right side
    298,889.10x = 107,528,387,449.37
  5. Step 5: Solve for x
    x = 107,528,387,449.37/298,889.10
  6. Step 6: Final answer
    x = 359,760.15

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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.