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Finding the Fourth Proportional to 447,599.70, 617,695.43 and 243,656.46

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Solution

The fourth proportional to 447,599.70, 617,695.43 and 243,656.46 is: 336,250.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,599.70 : 617,695.43 = 243,656.46 : x
  2. Step 2: Convert to fraction form
    447,599.70/617,695.43 = 243,656.46/x
  3. Step 3: Cross multiply
    447,599.70x = 617,695.43 × 243,656.46
  4. Step 4: Simplify right side
    447,599.70x = 150,505,480,613.70
  5. Step 5: Solve for x
    x = 150,505,480,613.70/447,599.70
  6. Step 6: Final answer
    x = 336,250.18

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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.