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Finding the Fourth Proportional to 447,605.00, 617,688.55 and 243,657.61

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Solution

The fourth proportional to 447,605.00, 617,688.55 and 243,657.61 is: 336,244.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,605.00 : 617,688.55 = 243,657.61 : x
  2. Step 2: Convert to fraction form
    447,605.00/617,688.55 = 243,657.61/x
  3. Step 3: Cross multiply
    447,605.00x = 617,688.55 × 243,657.61
  4. Step 4: Simplify right side
    447,605.00x = 150,504,518,052.21
  5. Step 5: Solve for x
    x = 150,504,518,052.21/447,605.00
  6. Step 6: Final answer
    x = 336,244.05

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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.