Home / 644,666.20-965,670.39-377,617.10

Finding the Fourth Proportional to 644,666.20, 965,670.39 and 377,617.10

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Solution

The fourth proportional to 644,666.20, 965,670.39 and 377,617.10 is: 565,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,666.20 : 965,670.39 = 377,617.10 : x
  2. Step 2: Convert to fraction form
    644,666.20/965,670.39 = 377,617.10/x
  3. Step 3: Cross multiply
    644,666.20x = 965,670.39 × 377,617.10
  4. Step 4: Simplify right side
    644,666.20x = 364,653,647,399.32
  5. Step 5: Solve for x
    x = 364,653,647,399.32/644,666.20
  6. Step 6: Final answer
    x = 565,647.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.