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Finding the Fourth Proportional to 617,599.80, 926,745.30 and 262,553.40

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Solution

The fourth proportional to 617,599.80, 926,745.30 and 262,553.40 is: 393,977.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,599.80 : 926,745.30 = 262,553.40 : x
  2. Step 2: Convert to fraction form
    617,599.80/926,745.30 = 262,553.40/x
  3. Step 3: Cross multiply
    617,599.80x = 926,745.30 × 262,553.40
  4. Step 4: Simplify right side
    617,599.80x = 243,320,129,449.02
  5. Step 5: Solve for x
    x = 243,320,129,449.02/617,599.80
  6. Step 6: Final answer
    x = 393,977.02

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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.