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Finding the Fourth Proportional to 667,358.92, 920,955.70 and 365,557.96

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Solution

The fourth proportional to 667,358.92, 920,955.70 and 365,557.96 is: 504,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,358.92 : 920,955.70 = 365,557.96 : x
  2. Step 2: Convert to fraction form
    667,358.92/920,955.70 = 365,557.96/x
  3. Step 3: Cross multiply
    667,358.92x = 920,955.70 × 365,557.96
  4. Step 4: Simplify right side
    667,358.92x = 336,662,686,942.37
  5. Step 5: Solve for x
    x = 336,662,686,942.37/667,358.92
  6. Step 6: Final answer
    x = 504,470.20

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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.