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Finding the Fourth Proportional to 669,776.88, 923,757.54 and 440,569.56

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Solution

The fourth proportional to 669,776.88, 923,757.54 and 440,569.56 is: 607,634.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,776.88 : 923,757.54 = 440,569.56 : x
  2. Step 2: Convert to fraction form
    669,776.88/923,757.54 = 440,569.56/x
  3. Step 3: Cross multiply
    669,776.88x = 923,757.54 × 440,569.56
  4. Step 4: Simplify right side
    669,776.88x = 406,979,452,944.48
  5. Step 5: Solve for x
    x = 406,979,452,944.48/669,776.88
  6. Step 6: Final answer
    x = 607,634.37

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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.