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Finding the Fourth Proportional to 616,493.60, 924,556.08 and 320,844.32

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Solution

The fourth proportional to 616,493.60, 924,556.08 and 320,844.32 is: 481,170.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,493.60 : 924,556.08 = 320,844.32 : x
  2. Step 2: Convert to fraction form
    616,493.60/924,556.08 = 320,844.32/x
  3. Step 3: Cross multiply
    616,493.60x = 924,556.08 × 320,844.32
  4. Step 4: Simplify right side
    616,493.60x = 296,638,566,789.47
  5. Step 5: Solve for x
    x = 296,638,566,789.47/616,493.60
  6. Step 6: Final answer
    x = 481,170.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.