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Finding the Fourth Proportional to 621,794.69, 932,702.99 and 222,721.86

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Solution

The fourth proportional to 621,794.69, 932,702.99 and 222,721.86 is: 334,086.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,794.69 : 932,702.99 = 222,721.86 : x
  2. Step 2: Convert to fraction form
    621,794.69/932,702.99 = 222,721.86/x
  3. Step 3: Cross multiply
    621,794.69x = 932,702.99 × 222,721.86
  4. Step 4: Simplify right side
    621,794.69x = 207,733,343,646.75
  5. Step 5: Solve for x
    x = 207,733,343,646.75/621,794.69
  6. Step 6: Final answer
    x = 334,086.71

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Double scale
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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.