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Finding the Fourth Proportional to 361,331.36, 541,801.56 and 286,930.16

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Solution

The fourth proportional to 361,331.36, 541,801.56 and 286,930.16 is: 430,240.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,331.36 : 541,801.56 = 286,930.16 : x
  2. Step 2: Convert to fraction form
    361,331.36/541,801.56 = 286,930.16/x
  3. Step 3: Cross multiply
    361,331.36x = 541,801.56 × 286,930.16
  4. Step 4: Simplify right side
    361,331.36x = 155,459,208,299.05
  5. Step 5: Solve for x
    x = 155,459,208,299.05/361,331.36
  6. Step 6: Final answer
    x = 430,240.01

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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.