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Finding the Fourth Proportional to 669,640.30, 924,110.32 and 363,722.64

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Solution

The fourth proportional to 669,640.30, 924,110.32 and 363,722.64 is: 501,940.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,640.30 : 924,110.32 = 363,722.64 : x
  2. Step 2: Convert to fraction form
    669,640.30/924,110.32 = 363,722.64/x
  3. Step 3: Cross multiply
    669,640.30x = 924,110.32 × 363,722.64
  4. Step 4: Simplify right side
    669,640.30x = 336,119,845,241.65
  5. Step 5: Solve for x
    x = 336,119,845,241.65/669,640.30
  6. Step 6: Final answer
    x = 501,940.89

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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.