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Finding the Fourth Proportional to 469,891.09, 648,455.93 and 255,033.73

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Solution

The fourth proportional to 469,891.09, 648,455.93 and 255,033.73 is: 351,949.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,891.09 : 648,455.93 = 255,033.73 : x
  2. Step 2: Convert to fraction form
    469,891.09/648,455.93 = 255,033.73/x
  3. Step 3: Cross multiply
    469,891.09x = 648,455.93 × 255,033.73
  4. Step 4: Simplify right side
    469,891.09x = 165,378,133,293.35
  5. Step 5: Solve for x
    x = 165,378,133,293.35/469,891.09
  6. Step 6: Final answer
    x = 351,949.92

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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.