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Finding the Fourth Proportional to 669,118.68, 923,359.08 and 363,188.60

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Solution

The fourth proportional to 669,118.68, 923,359.08 and 363,188.60 is: 501,186.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,118.68 : 923,359.08 = 363,188.60 : x
  2. Step 2: Convert to fraction form
    669,118.68/923,359.08 = 363,188.60/x
  3. Step 3: Cross multiply
    669,118.68x = 923,359.08 × 363,188.60
  4. Step 4: Simplify right side
    669,118.68x = 335,353,486,945.69
  5. Step 5: Solve for x
    x = 335,353,486,945.69/669,118.68
  6. Step 6: Final answer
    x = 501,186.86

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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.