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Finding the Fourth Proportional to 667,592, 921,298.56 and 365,805.44

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Solution

The fourth proportional to 667,592, 921,298.56 and 365,805.44 is: 504,823.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,592 : 921,298.56 = 365,805.44 : x
  2. Step 2: Convert to fraction form
    667,592/921,298.56 = 365,805.44/x
  3. Step 3: Cross multiply
    667,592x = 921,298.56 × 365,805.44
  4. Step 4: Simplify right side
    667,592x = 337,016,025,112.17
  5. Step 5: Solve for x
    x = 337,016,025,112.17/667,592
  6. Step 6: Final answer
    x = 504,823.34

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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.