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Finding the Fourth Proportional to 427,090.68, 589,333.86 and 236,077.92

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Solution

The fourth proportional to 427,090.68, 589,333.86 and 236,077.92 is: 325,759.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,090.68 : 589,333.86 = 236,077.92 : x
  2. Step 2: Convert to fraction form
    427,090.68/589,333.86 = 236,077.92/x
  3. Step 3: Cross multiply
    427,090.68x = 589,333.86 × 236,077.92
  4. Step 4: Simplify right side
    427,090.68x = 139,128,711,854.37
  5. Step 5: Solve for x
    x = 139,128,711,854.37/427,090.68
  6. Step 6: Final answer
    x = 325,759.19

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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.