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Finding the Fourth Proportional to 617,898.30, 926,847.45 and 262,923.90

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Solution

The fourth proportional to 617,898.30, 926,847.45 and 262,923.90 is: 394,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,898.30 : 926,847.45 = 262,923.90 : x
  2. Step 2: Convert to fraction form
    617,898.30/926,847.45 = 262,923.90/x
  3. Step 3: Cross multiply
    617,898.30x = 926,847.45 × 262,923.90
  4. Step 4: Simplify right side
    617,898.30x = 243,690,346,259.06
  5. Step 5: Solve for x
    x = 243,690,346,259.06/617,898.30
  6. Step 6: Final answer
    x = 394,385.85

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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.