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Finding the Fourth Proportional to 411,558.20, 617,337.30 and 366,943.40

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Solution

The fourth proportional to 411,558.20, 617,337.30 and 366,943.40 is: 550,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,558.20 : 617,337.30 = 366,943.40 : x
  2. Step 2: Convert to fraction form
    411,558.20/617,337.30 = 366,943.40/x
  3. Step 3: Cross multiply
    411,558.20x = 617,337.30 × 366,943.40
  4. Step 4: Simplify right side
    411,558.20x = 226,527,847,808.82
  5. Step 5: Solve for x
    x = 226,527,847,808.82/411,558.20
  6. Step 6: Final answer
    x = 550,415.10

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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.