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Finding the Fourth Proportional to 401,068.80, 601,603.20 and 367,891.20

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Solution

The fourth proportional to 401,068.80, 601,603.20 and 367,891.20 is: 551,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,068.80 : 601,603.20 = 367,891.20 : x
  2. Step 2: Convert to fraction form
    401,068.80/601,603.20 = 367,891.20/x
  3. Step 3: Cross multiply
    401,068.80x = 601,603.20 × 367,891.20
  4. Step 4: Simplify right side
    401,068.80x = 221,324,523,171.84
  5. Step 5: Solve for x
    x = 221,324,523,171.84/401,068.80
  6. Step 6: Final answer
    x = 551,836.80

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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.