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Finding the Fourth Proportional to 652,104.30, 978,156.45 and 400,161.90

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Solution

The fourth proportional to 652,104.30, 978,156.45 and 400,161.90 is: 600,242.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,104.30 : 978,156.45 = 400,161.90 : x
  2. Step 2: Convert to fraction form
    652,104.30/978,156.45 = 400,161.90/x
  3. Step 3: Cross multiply
    652,104.30x = 978,156.45 × 400,161.90
  4. Step 4: Simplify right side
    652,104.30x = 391,420,943,529.26
  5. Step 5: Solve for x
    x = 391,420,943,529.26/652,104.30
  6. Step 6: Final answer
    x = 600,242.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.