Home / 530,188.96-731,419.68-315,207.04

Finding the Fourth Proportional to 530,188.96, 731,419.68 and 315,207.04

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Solution

The fourth proportional to 530,188.96, 731,419.68 and 315,207.04 is: 434,842.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,188.96 : 731,419.68 = 315,207.04 : x
  2. Step 2: Convert to fraction form
    530,188.96/731,419.68 = 315,207.04/x
  3. Step 3: Cross multiply
    530,188.96x = 731,419.68 × 315,207.04
  4. Step 4: Simplify right side
    530,188.96x = 230,548,632,330.55
  5. Step 5: Solve for x
    x = 230,548,632,330.55/530,188.96
  6. Step 6: Final answer
    x = 434,842.39

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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.