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Finding the Fourth Proportional to 669,283.49, 923,611.21 and 363,359.86

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Solution

The fourth proportional to 669,283.49, 923,611.21 and 363,359.86 is: 501,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,283.49 : 923,611.21 = 363,359.86 : x
  2. Step 2: Convert to fraction form
    669,283.49/923,611.21 = 363,359.86/x
  3. Step 3: Cross multiply
    669,283.49x = 923,611.21 × 363,359.86
  4. Step 4: Simplify right side
    669,283.49x = 335,603,236,742.60
  5. Step 5: Solve for x
    x = 335,603,236,742.60/669,283.49
  6. Step 6: Final answer
    x = 501,436.60

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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.