Home / 656,086.96-905,403.18-369,611.56

Finding the Fourth Proportional to 656,086.96, 905,403.18 and 369,611.56

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Solution

The fourth proportional to 656,086.96, 905,403.18 and 369,611.56 is: 510,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,086.96 : 905,403.18 = 369,611.56 : x
  2. Step 2: Convert to fraction form
    656,086.96/905,403.18 = 369,611.56/x
  3. Step 3: Cross multiply
    656,086.96x = 905,403.18 × 369,611.56
  4. Step 4: Simplify right side
    656,086.96x = 334,647,481,788.76
  5. Step 5: Solve for x
    x = 334,647,481,788.76/656,086.96
  6. Step 6: Final answer
    x = 510,065.74

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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.