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Finding the Fourth Proportional to 417,974.83, 626,878.42 and 204,650.83

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Solution

The fourth proportional to 417,974.83, 626,878.42 and 204,650.83 is: 306,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,974.83 : 626,878.42 = 204,650.83 : x
  2. Step 2: Convert to fraction form
    417,974.83/626,878.42 = 204,650.83/x
  3. Step 3: Cross multiply
    417,974.83x = 626,878.42 × 204,650.83
  4. Step 4: Simplify right side
    417,974.83x = 128,291,185,316.07
  5. Step 5: Solve for x
    x = 128,291,185,316.07/417,974.83
  6. Step 6: Final answer
    x = 306,935.20

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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.