Home / 530,343.41-731,890.17-300,910.25

Finding the Fourth Proportional to 530,343.41, 731,890.17 and 300,910.25

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Solution

The fourth proportional to 530,343.41, 731,890.17 and 300,910.25 is: 415,265.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,343.41 : 731,890.17 = 300,910.25 : x
  2. Step 2: Convert to fraction form
    530,343.41/731,890.17 = 300,910.25/x
  3. Step 3: Cross multiply
    530,343.41x = 731,890.17 × 300,910.25
  4. Step 4: Simplify right side
    530,343.41x = 220,233,250,367.79
  5. Step 5: Solve for x
    x = 220,233,250,367.79/530,343.41
  6. Step 6: Final answer
    x = 415,265.37

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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.