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Finding the Fourth Proportional to 669,049.89, 923,289.71 and 363,126.23

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Solution

The fourth proportional to 669,049.89, 923,289.71 and 363,126.23 is: 501,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,049.89 : 923,289.71 = 363,126.23 : x
  2. Step 2: Convert to fraction form
    669,049.89/923,289.71 = 363,126.23/x
  3. Step 3: Cross multiply
    669,049.89x = 923,289.71 × 363,126.23
  4. Step 4: Simplify right side
    669,049.89x = 335,270,709,774.46
  5. Step 5: Solve for x
    x = 335,270,709,774.46/669,049.89
  6. Step 6: Final answer
    x = 501,114.67

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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.