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Finding the Fourth Proportional to 404,781.48, 606,688.38 and 188,347.86

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Solution

The fourth proportional to 404,781.48, 606,688.38 and 188,347.86 is: 282,296.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,781.48 : 606,688.38 = 188,347.86 : x
  2. Step 2: Convert to fraction form
    404,781.48/606,688.38 = 188,347.86/x
  3. Step 3: Cross multiply
    404,781.48x = 606,688.38 × 188,347.86
  4. Step 4: Simplify right side
    404,781.48x = 114,268,458,059.87
  5. Step 5: Solve for x
    x = 114,268,458,059.87/404,781.48
  6. Step 6: Final answer
    x = 282,296.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.