Home / 669,074.43-923,336.42-378,685.98

Finding the Fourth Proportional to 669,074.43, 923,336.42 and 378,685.98

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Solution

The fourth proportional to 669,074.43, 923,336.42 and 378,685.98 is: 522,594.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,074.43 : 923,336.42 = 378,685.98 : x
  2. Step 2: Convert to fraction form
    669,074.43/923,336.42 = 378,685.98/x
  3. Step 3: Cross multiply
    669,074.43x = 923,336.42 × 378,685.98
  4. Step 4: Simplify right side
    669,074.43x = 349,654,560,332.45
  5. Step 5: Solve for x
    x = 349,654,560,332.45/669,074.43
  6. Step 6: Final answer
    x = 522,594.42

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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.