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Finding the Fourth Proportional to 447,617.64, 617,693.04 and 243,668.88

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Solution

The fourth proportional to 447,617.64, 617,693.04 and 243,668.88 is: 336,252.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,617.64 : 617,693.04 = 243,668.88 : x
  2. Step 2: Convert to fraction form
    447,617.64/617,693.04 = 243,668.88/x
  3. Step 3: Cross multiply
    447,617.64x = 617,693.04 × 243,668.88
  4. Step 4: Simplify right side
    447,617.64x = 150,512,571,240.60
  5. Step 5: Solve for x
    x = 150,512,571,240.60/447,617.64
  6. Step 6: Final answer
    x = 336,252.55

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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.