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Finding the Fourth Proportional to 499,576.06, 689,416.14 and 284,725.18

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Solution

The fourth proportional to 499,576.06, 689,416.14 and 284,725.18 is: 392,921.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,576.06 : 689,416.14 = 284,725.18 : x
  2. Step 2: Convert to fraction form
    499,576.06/689,416.14 = 284,725.18/x
  3. Step 3: Cross multiply
    499,576.06x = 689,416.14 × 284,725.18
  4. Step 4: Simplify right side
    499,576.06x = 196,294,134,556.41
  5. Step 5: Solve for x
    x = 196,294,134,556.41/499,576.06
  6. Step 6: Final answer
    x = 392,921.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.