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Finding the Fourth Proportional to 487,766.48, 673,143.92 and 272,893.76

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Solution

The fourth proportional to 487,766.48, 673,143.92 and 272,893.76 is: 376,608.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,766.48 : 673,143.92 = 272,893.76 : x
  2. Step 2: Convert to fraction form
    487,766.48/673,143.92 = 272,893.76/x
  3. Step 3: Cross multiply
    487,766.48x = 673,143.92 × 272,893.76
  4. Step 4: Simplify right side
    487,766.48x = 183,696,775,349.94
  5. Step 5: Solve for x
    x = 183,696,775,349.94/487,766.48
  6. Step 6: Final answer
    x = 376,608.03

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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.