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Finding the Fourth Proportional to 404,121.60, 605,395.08 and 245,957.76

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Solution

The fourth proportional to 404,121.60, 605,395.08 and 245,957.76 is: 368,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,121.60 : 605,395.08 = 245,957.76 : x
  2. Step 2: Convert to fraction form
    404,121.60/605,395.08 = 245,957.76/x
  3. Step 3: Cross multiply
    404,121.60x = 605,395.08 × 245,957.76
  4. Step 4: Simplify right side
    404,121.60x = 148,901,617,791.82
  5. Step 5: Solve for x
    x = 148,901,617,791.82/404,121.60
  6. Step 6: Final answer
    x = 368,457.46

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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.