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Finding the Fourth Proportional to 427,090.38, 589,333.55 and 236,077.80

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Solution

The fourth proportional to 427,090.38, 589,333.55 and 236,077.80 is: 325,759.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,090.38 : 589,333.55 = 236,077.80 : x
  2. Step 2: Convert to fraction form
    427,090.38/589,333.55 = 236,077.80/x
  3. Step 3: Cross multiply
    427,090.38x = 589,333.55 × 236,077.80
  4. Step 4: Simplify right side
    427,090.38x = 139,128,565,003.52
  5. Step 5: Solve for x
    x = 139,128,565,003.52/427,090.38
  6. Step 6: Final answer
    x = 325,759.07

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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.