Home / 530,186.46-731,416.23-315,204.54

Finding the Fourth Proportional to 530,186.46, 731,416.23 and 315,204.54

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Solution

The fourth proportional to 530,186.46, 731,416.23 and 315,204.54 is: 434,838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,186.46 : 731,416.23 = 315,204.54 : x
  2. Step 2: Convert to fraction form
    530,186.46/731,416.23 = 315,204.54/x
  3. Step 3: Cross multiply
    530,186.46x = 731,416.23 × 315,204.54
  4. Step 4: Simplify right side
    530,186.46x = 230,545,716,325.68
  5. Step 5: Solve for x
    x = 230,545,716,325.68/530,186.46
  6. Step 6: Final answer
    x = 434,838.94

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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.