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Finding the Fourth Proportional to 502,685.28, 693,700.08 and 273,237.60

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Solution

The fourth proportional to 502,685.28, 693,700.08 and 273,237.60 is: 377,064.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,685.28 : 693,700.08 = 273,237.60 : x
  2. Step 2: Convert to fraction form
    502,685.28/693,700.08 = 273,237.60/x
  3. Step 3: Cross multiply
    502,685.28x = 693,700.08 × 273,237.60
  4. Step 4: Simplify right side
    502,685.28x = 189,544,944,979.01
  5. Step 5: Solve for x
    x = 189,544,944,979.01/502,685.28
  6. Step 6: Final answer
    x = 377,064.84

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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.