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Finding the Fourth Proportional to 669,285.76, 923,615.13 and 363,362.44

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Solution

The fourth proportional to 669,285.76, 923,615.13 and 363,362.44 is: 501,440.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,285.76 : 923,615.13 = 363,362.44 : x
  2. Step 2: Convert to fraction form
    669,285.76/923,615.13 = 363,362.44/x
  3. Step 3: Cross multiply
    669,285.76x = 923,615.13 × 363,362.44
  4. Step 4: Simplify right side
    669,285.76x = 335,607,047,257.72
  5. Step 5: Solve for x
    x = 335,607,047,257.72/669,285.76
  6. Step 6: Final answer
    x = 501,440.59

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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.