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Finding the Fourth Proportional to 669,059.48, 923,304.86 and 363,136.31

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Solution

The fourth proportional to 669,059.48, 923,304.86 and 363,136.31 is: 501,129.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,059.48 : 923,304.86 = 363,136.31 : x
  2. Step 2: Convert to fraction form
    669,059.48/923,304.86 = 363,136.31/x
  3. Step 3: Cross multiply
    669,059.48x = 923,304.86 × 363,136.31
  4. Step 4: Simplify right side
    669,059.48x = 335,285,514,795.02
  5. Step 5: Solve for x
    x = 335,285,514,795.02/669,059.48
  6. Step 6: Final answer
    x = 501,129.61

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Double scale
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Similar ratio
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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.