Home / 530,274.76-731,792.66-288,570.44

Finding the Fourth Proportional to 530,274.76, 731,792.66 and 288,570.44

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Solution

The fourth proportional to 530,274.76, 731,792.66 and 288,570.44 is: 398,234.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,274.76 : 731,792.66 = 288,570.44 : x
  2. Step 2: Convert to fraction form
    530,274.76/731,792.66 = 288,570.44/x
  3. Step 3: Cross multiply
    530,274.76x = 731,792.66 × 288,570.44
  4. Step 4: Simplify right side
    530,274.76x = 211,173,729,884.97
  5. Step 5: Solve for x
    x = 211,173,729,884.97/530,274.76
  6. Step 6: Final answer
    x = 398,234.55

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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.