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Finding the Fourth Proportional to 411,957.90, 617,418.45 and 365,301.90

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Solution

The fourth proportional to 411,957.90, 617,418.45 and 365,301.90 is: 547,493.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,957.90 : 617,418.45 = 365,301.90 : x
  2. Step 2: Convert to fraction form
    411,957.90/617,418.45 = 365,301.90/x
  3. Step 3: Cross multiply
    411,957.90x = 617,418.45 × 365,301.90
  4. Step 4: Simplify right side
    411,957.90x = 225,544,132,880.06
  5. Step 5: Solve for x
    x = 225,544,132,880.06/411,957.90
  6. Step 6: Final answer
    x = 547,493.16

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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.