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Finding the Fourth Proportional to 644,614.89, 965,593.73 and 377,565.80

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Solution

The fourth proportional to 644,614.89, 965,593.73 and 377,565.80 is: 565,570.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,614.89 : 965,593.73 = 377,565.80 : x
  2. Step 2: Convert to fraction form
    644,614.89/965,593.73 = 377,565.80/x
  3. Step 3: Cross multiply
    644,614.89x = 965,593.73 × 377,565.80
  4. Step 4: Simplify right side
    644,614.89x = 364,575,162,426.64
  5. Step 5: Solve for x
    x = 364,575,162,426.64/644,614.89
  6. Step 6: Final answer
    x = 565,570.50

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1.5x scale

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.