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Finding the Fourth Proportional to 447,324.87, 617,325.30 and 256,375.11

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Solution

The fourth proportional to 447,324.87, 617,325.30 and 256,375.11 is: 353,807.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,324.87 : 617,325.30 = 256,375.11 : x
  2. Step 2: Convert to fraction form
    447,324.87/617,325.30 = 256,375.11/x
  3. Step 3: Cross multiply
    447,324.87x = 617,325.30 × 256,375.11
  4. Step 4: Simplify right side
    447,324.87x = 158,266,841,693.28
  5. Step 5: Solve for x
    x = 158,266,841,693.28/447,324.87
  6. Step 6: Final answer
    x = 353,807.38

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1.5x scale

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.