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Finding the Fourth Proportional to 323,601.74, 485,357.25 and 136,569.50

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Solution

The fourth proportional to 323,601.74, 485,357.25 and 136,569.50 is: 204,835.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,601.74 : 485,357.25 = 136,569.50 : x
  2. Step 2: Convert to fraction form
    323,601.74/485,357.25 = 136,569.50/x
  3. Step 3: Cross multiply
    323,601.74x = 485,357.25 × 136,569.50
  4. Step 4: Simplify right side
    323,601.74x = 66,284,996,953.88
  5. Step 5: Solve for x
    x = 66,284,996,953.88/323,601.74
  6. Step 6: Final answer
    x = 204,835.11

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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.