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Finding the Fourth Proportional to 447,263.91, 617,452.74 and 345,059.91

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Solution

The fourth proportional to 447,263.91, 617,452.74 and 345,059.91 is: 476,359.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,263.91 : 617,452.74 = 345,059.91 : x
  2. Step 2: Convert to fraction form
    447,263.91/617,452.74 = 345,059.91/x
  3. Step 3: Cross multiply
    447,263.91x = 617,452.74 × 345,059.91
  4. Step 4: Simplify right side
    447,263.91x = 213,058,186,893.65
  5. Step 5: Solve for x
    x = 213,058,186,893.65/447,263.91
  6. Step 6: Final answer
    x = 476,359.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.