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Finding the Fourth Proportional to 285,147.39, 393,601.77 and 164,336.91

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Solution

The fourth proportional to 285,147.39, 393,601.77 and 164,336.91 is: 226,841.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,147.39 : 393,601.77 = 164,336.91 : x
  2. Step 2: Convert to fraction form
    285,147.39/393,601.77 = 164,336.91/x
  3. Step 3: Cross multiply
    285,147.39x = 393,601.77 × 164,336.91
  4. Step 4: Simplify right side
    285,147.39x = 64,683,298,652.33
  5. Step 5: Solve for x
    x = 64,683,298,652.33/285,147.39
  6. Step 6: Final answer
    x = 226,841.63

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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.