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Finding the Fourth Proportional to 591,494.01, 816,262.10 and 319,561.75

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Solution

The fourth proportional to 591,494.01, 816,262.10 and 319,561.75 is: 440,995.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,494.01 : 816,262.10 = 319,561.75 : x
  2. Step 2: Convert to fraction form
    591,494.01/816,262.10 = 319,561.75/x
  3. Step 3: Cross multiply
    591,494.01x = 816,262.10 × 319,561.75
  4. Step 4: Simplify right side
    591,494.01x = 260,846,145,134.68
  5. Step 5: Solve for x
    x = 260,846,145,134.68/591,494.01
  6. Step 6: Final answer
    x = 440,995.41

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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.