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Finding the Fourth Proportional to 447,473.64, 617,541.18 and 256,515.73

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Solution

The fourth proportional to 447,473.64, 617,541.18 and 256,515.73 is: 354,007.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,473.64 : 617,541.18 = 256,515.73 : x
  2. Step 2: Convert to fraction form
    447,473.64/617,541.18 = 256,515.73/x
  3. Step 3: Cross multiply
    447,473.64x = 617,541.18 × 256,515.73
  4. Step 4: Simplify right side
    447,473.64x = 158,409,026,592.76
  5. Step 5: Solve for x
    x = 158,409,026,592.76/447,473.64
  6. Step 6: Final answer
    x = 354,007.50

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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.