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Finding the Fourth Proportional to 464,274.76, 640,832.03 and 273,398.87

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Solution

The fourth proportional to 464,274.76, 640,832.03 and 273,398.87 is: 377,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,274.76 : 640,832.03 = 273,398.87 : x
  2. Step 2: Convert to fraction form
    464,274.76/640,832.03 = 273,398.87/x
  3. Step 3: Cross multiply
    464,274.76x = 640,832.03 × 273,398.87
  4. Step 4: Simplify right side
    464,274.76x = 175,202,752,861.81
  5. Step 5: Solve for x
    x = 175,202,752,861.81/464,274.76
  6. Step 6: Final answer
    x = 377,368.68

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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.