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Finding the Fourth Proportional to 502,590.78, 693,580.66 and 273,148.07

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Solution

The fourth proportional to 502,590.78, 693,580.66 and 273,148.07 is: 376,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,590.78 : 693,580.66 = 273,148.07 : x
  2. Step 2: Convert to fraction form
    502,590.78/693,580.66 = 273,148.07/x
  3. Step 3: Cross multiply
    502,590.78x = 693,580.66 × 273,148.07
  4. Step 4: Simplify right side
    502,590.78x = 189,450,214,517.55
  5. Step 5: Solve for x
    x = 189,450,214,517.55/502,590.78
  6. Step 6: Final answer
    x = 376,947.25

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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.