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Finding the Fourth Proportional to 487,744.52, 673,113.60 and 272,871.77

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Solution

The fourth proportional to 487,744.52, 673,113.60 and 272,871.77 is: 376,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,744.52 : 673,113.60 = 272,871.77 : x
  2. Step 2: Convert to fraction form
    487,744.52/673,113.60 = 272,871.77/x
  3. Step 3: Cross multiply
    487,744.52x = 673,113.60 × 272,871.77
  4. Step 4: Simplify right side
    487,744.52x = 183,673,696,077.50
  5. Step 5: Solve for x
    x = 183,673,696,077.50/487,744.52
  6. Step 6: Final answer
    x = 376,577.68

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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.