Home / 669,743.37-923,711.31-440,536.05

Finding the Fourth Proportional to 669,743.37, 923,711.31 and 440,536.05

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Solution

The fourth proportional to 669,743.37, 923,711.31 and 440,536.05 is: 607,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,743.37 : 923,711.31 = 440,536.05 : x
  2. Step 2: Convert to fraction form
    669,743.37/923,711.31 = 440,536.05/x
  3. Step 3: Cross multiply
    669,743.37x = 923,711.31 × 440,536.05
  4. Step 4: Simplify right side
    669,743.37x = 406,928,131,847.73
  5. Step 5: Solve for x
    x = 406,928,131,847.73/669,743.37
  6. Step 6: Final answer
    x = 607,588.15

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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.