Home / 530,186.96-731,416.92-315,205.04

Finding the Fourth Proportional to 530,186.96, 731,416.92 and 315,205.04

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Solution

The fourth proportional to 530,186.96, 731,416.92 and 315,205.04 is: 434,839.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,186.96 : 731,416.92 = 315,205.04 : x
  2. Step 2: Convert to fraction form
    530,186.96/731,416.92 = 315,205.04/x
  3. Step 3: Cross multiply
    530,186.96x = 731,416.92 × 315,205.04
  4. Step 4: Simplify right side
    530,186.96x = 230,546,299,525.28
  5. Step 5: Solve for x
    x = 230,546,299,525.28/530,186.96
  6. Step 6: Final answer
    x = 434,839.63

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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.