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Finding the Fourth Proportional to 447,772.86, 617,917.71 and 243,826.23

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Solution

The fourth proportional to 447,772.86, 617,917.71 and 243,826.23 is: 336,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,772.86 : 617,917.71 = 243,826.23 : x
  2. Step 2: Convert to fraction form
    447,772.86/617,917.71 = 243,826.23/x
  3. Step 3: Cross multiply
    447,772.86x = 617,917.71 × 243,826.23
  4. Step 4: Simplify right side
    447,772.86x = 150,664,548,911.07
  5. Step 5: Solve for x
    x = 150,664,548,911.07/447,772.86
  6. Step 6: Final answer
    x = 336,475.39

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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.