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Finding the Fourth Proportional to 404,317.10, 606,475.65 and 279,901.10

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Solution

The fourth proportional to 404,317.10, 606,475.65 and 279,901.10 is: 419,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,317.10 : 606,475.65 = 279,901.10 : x
  2. Step 2: Convert to fraction form
    404,317.10/606,475.65 = 279,901.10/x
  3. Step 3: Cross multiply
    404,317.10x = 606,475.65 × 279,901.10
  4. Step 4: Simplify right side
    404,317.10x = 169,753,201,558.22
  5. Step 5: Solve for x
    x = 169,753,201,558.22/404,317.10
  6. Step 6: Final answer
    x = 419,851.65

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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.