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Finding the Fourth Proportional to 404,507.70, 606,761.55 and 269,205.30

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Solution

The fourth proportional to 404,507.70, 606,761.55 and 269,205.30 is: 403,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,507.70 : 606,761.55 = 269,205.30 : x
  2. Step 2: Convert to fraction form
    404,507.70/606,761.55 = 269,205.30/x
  3. Step 3: Cross multiply
    404,507.70x = 606,761.55 × 269,205.30
  4. Step 4: Simplify right side
    404,507.70x = 163,343,425,096.22
  5. Step 5: Solve for x
    x = 163,343,425,096.22/404,507.70
  6. Step 6: Final answer
    x = 403,807.95

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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.