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Finding the Fourth Proportional to 403,725.90, 605,588.85 and 403,725.90

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Solution

The fourth proportional to 403,725.90, 605,588.85 and 403,725.90 is: 605,588.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,725.90 : 605,588.85 = 403,725.90 : x
  2. Step 2: Convert to fraction form
    403,725.90/605,588.85 = 403,725.90/x
  3. Step 3: Cross multiply
    403,725.90x = 605,588.85 × 403,725.90
  4. Step 4: Simplify right side
    403,725.90x = 244,491,903,496.22
  5. Step 5: Solve for x
    x = 244,491,903,496.22/403,725.90
  6. Step 6: Final answer
    x = 605,588.85

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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.