Home / 976,949.78-1,347,694.67-666,619.61

Finding the Fourth Proportional to 976,949.78, 1,347,694.67 and 666,619.61

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Solution

The fourth proportional to 976,949.78, 1,347,694.67 and 666,619.61 is: 919,596.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,949.78 : 1,347,694.67 = 666,619.61 : x
  2. Step 2: Convert to fraction form
    976,949.78/1,347,694.67 = 666,619.61/x
  3. Step 3: Cross multiply
    976,949.78x = 1,347,694.67 × 666,619.61
  4. Step 4: Simplify right side
    976,949.78x = 898,399,690,242.56
  5. Step 5: Solve for x
    x = 898,399,690,242.56/976,949.78
  6. Step 6: Final answer
    x = 919,596.60

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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.