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Finding the Fourth Proportional to 447,473.88, 617,541.52 and 256,515.98

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Solution

The fourth proportional to 447,473.88, 617,541.52 and 256,515.98 is: 354,007.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,473.88 : 617,541.52 = 256,515.98 : x
  2. Step 2: Convert to fraction form
    447,473.88/617,541.52 = 256,515.98/x
  3. Step 3: Cross multiply
    447,473.88x = 617,541.52 × 256,515.98
  4. Step 4: Simplify right side
    447,473.88x = 158,409,268,193.49
  5. Step 5: Solve for x
    x = 158,409,268,193.49/447,473.88
  6. Step 6: Final answer
    x = 354,007.85

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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.