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Finding the Fourth Proportional to 360,523.40, 496,991.80 and 283,796.68

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Solution

The fourth proportional to 360,523.40, 496,991.80 and 283,796.68 is: 391,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,523.40 : 496,991.80 = 283,796.68 : x
  2. Step 2: Convert to fraction form
    360,523.40/496,991.80 = 283,796.68/x
  3. Step 3: Cross multiply
    360,523.40x = 496,991.80 × 283,796.68
  4. Step 4: Simplify right side
    360,523.40x = 141,044,622,827.22
  5. Step 5: Solve for x
    x = 141,044,622,827.22/360,523.40
  6. Step 6: Final answer
    x = 391,221.83

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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.