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Finding the Fourth Proportional to 669,410.46, 923,770.80 and 363,487.59

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Solution

The fourth proportional to 669,410.46, 923,770.80 and 363,487.59 is: 501,604.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,410.46 : 923,770.80 = 363,487.59 : x
  2. Step 2: Convert to fraction form
    669,410.46/923,770.80 = 363,487.59/x
  3. Step 3: Cross multiply
    669,410.46x = 923,770.80 × 363,487.59
  4. Step 4: Simplify right side
    669,410.46x = 335,779,221,804.37
  5. Step 5: Solve for x
    x = 335,779,221,804.37/669,410.46
  6. Step 6: Final answer
    x = 501,604.38

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Half scale
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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.