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Finding the Fourth Proportional to 667,355.92, 920,951.56 and 365,554.96

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Solution

The fourth proportional to 667,355.92, 920,951.56 and 365,554.96 is: 504,466.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,355.92 : 920,951.56 = 365,554.96 : x
  2. Step 2: Convert to fraction form
    667,355.92/920,951.56 = 365,554.96/x
  3. Step 3: Cross multiply
    667,355.92x = 920,951.56 × 365,554.96
  4. Step 4: Simplify right side
    667,355.92x = 336,658,410,677.74
  5. Step 5: Solve for x
    x = 336,658,410,677.74/667,355.92
  6. Step 6: Final answer
    x = 504,466.06

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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.