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Finding the Fourth Proportional to 468,637.38, 646,719.93 and 253,777.68

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Solution

The fourth proportional to 468,637.38, 646,719.93 and 253,777.68 is: 350,213.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,637.38 : 646,719.93 = 253,777.68 : x
  2. Step 2: Convert to fraction form
    468,637.38/646,719.93 = 253,777.68/x
  3. Step 3: Cross multiply
    468,637.38x = 646,719.93 × 253,777.68
  4. Step 4: Simplify right side
    468,637.38x = 164,123,083,445.16
  5. Step 5: Solve for x
    x = 164,123,083,445.16/468,637.38
  6. Step 6: Final answer
    x = 350,213.39

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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.