Home / 530,343.55-731,365.30-356,306.95

Finding the Fourth Proportional to 530,343.55, 731,365.30 and 356,306.95

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Solution

The fourth proportional to 530,343.55, 731,365.30 and 356,306.95 is: 491,361.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,343.55 : 731,365.30 = 356,306.95 : x
  2. Step 2: Convert to fraction form
    530,343.55/731,365.30 = 356,306.95/x
  3. Step 3: Cross multiply
    530,343.55x = 731,365.30 × 356,306.95
  4. Step 4: Simplify right side
    530,343.55x = 260,590,540,738.43
  5. Step 5: Solve for x
    x = 260,590,540,738.43/530,343.55
  6. Step 6: Final answer
    x = 491,361.76

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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.