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Finding the Fourth Proportional to 669,141.96, 923,416.71 and 363,218.18

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Solution

The fourth proportional to 669,141.96, 923,416.71 and 363,218.18 is: 501,241.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,141.96 : 923,416.71 = 363,218.18 : x
  2. Step 2: Convert to fraction form
    669,141.96/923,416.71 = 363,218.18/x
  3. Step 3: Cross multiply
    669,141.96x = 923,416.71 × 363,218.18
  4. Step 4: Simplify right side
    669,141.96x = 335,401,730,808.64
  5. Step 5: Solve for x
    x = 335,401,730,808.64/669,141.96
  6. Step 6: Final answer
    x = 501,241.52

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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.