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Finding the Fourth Proportional to 417,975.83, 626,879.92 and 204,651.83

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Solution

The fourth proportional to 417,975.83, 626,879.92 and 204,651.83 is: 306,936.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,975.83 : 626,879.92 = 204,651.83 : x
  2. Step 2: Convert to fraction form
    417,975.83/626,879.92 = 204,651.83/x
  3. Step 3: Cross multiply
    417,975.83x = 626,879.92 × 204,651.83
  4. Step 4: Simplify right side
    417,975.83x = 128,292,122,818.25
  5. Step 5: Solve for x
    x = 128,292,122,818.25/417,975.83
  6. Step 6: Final answer
    x = 306,936.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.