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Finding the Fourth Proportional to 404,904.73, 607,294.79 and 135,037.62

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Solution

The fourth proportional to 404,904.73, 607,294.79 and 135,037.62 is: 202,535.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,904.73 : 607,294.79 = 135,037.62 : x
  2. Step 2: Convert to fraction form
    404,904.73/607,294.79 = 135,037.62/x
  3. Step 3: Cross multiply
    404,904.73x = 607,294.79 × 135,037.62
  4. Step 4: Simplify right side
    404,904.73x = 82,007,640,043.53
  5. Step 5: Solve for x
    x = 82,007,640,043.53/404,904.73
  6. Step 6: Final answer
    x = 202,535.64

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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.