Home / 649,743.54-896,286.10-377,781.37

Finding the Fourth Proportional to 649,743.54, 896,286.10 and 377,781.37

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Solution

The fourth proportional to 649,743.54, 896,286.10 and 377,781.37 is: 521,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,743.54 : 896,286.10 = 377,781.37 : x
  2. Step 2: Convert to fraction form
    649,743.54/896,286.10 = 377,781.37/x
  3. Step 3: Cross multiply
    649,743.54x = 896,286.10 × 377,781.37
  4. Step 4: Simplify right side
    649,743.54x = 338,600,190,769.96
  5. Step 5: Solve for x
    x = 338,600,190,769.96/649,743.54
  6. Step 6: Final answer
    x = 521,128.98

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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.