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Finding the Fourth Proportional to 502,156.33, 693,187.76 and 339,033.81

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Solution

The fourth proportional to 502,156.33, 693,187.76 and 339,033.81 is: 468,009.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,156.33 : 693,187.76 = 339,033.81 : x
  2. Step 2: Convert to fraction form
    502,156.33/693,187.76 = 339,033.81/x
  3. Step 3: Cross multiply
    502,156.33x = 693,187.76 × 339,033.81
  4. Step 4: Simplify right side
    502,156.33x = 235,014,086,876.66
  5. Step 5: Solve for x
    x = 235,014,086,876.66/502,156.33
  6. Step 6: Final answer
    x = 468,009.81

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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.