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Finding the Fourth Proportional to 667,246.32, 920,809.08 and 365,442.48

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Solution

The fourth proportional to 667,246.32, 920,809.08 and 365,442.48 is: 504,315.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,246.32 : 920,809.08 = 365,442.48 : x
  2. Step 2: Convert to fraction form
    667,246.32/920,809.08 = 365,442.48/x
  3. Step 3: Cross multiply
    667,246.32x = 920,809.08 × 365,442.48
  4. Step 4: Simplify right side
    667,246.32x = 336,502,753,801.72
  5. Step 5: Solve for x
    x = 336,502,753,801.72/667,246.32
  6. Step 6: Final answer
    x = 504,315.64

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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.