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Finding the Fourth Proportional to 373,491.76, 515,397.72 and 212,324.44

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Solution

The fourth proportional to 373,491.76, 515,397.72 and 212,324.44 is: 292,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,491.76 : 515,397.72 = 212,324.44 : x
  2. Step 2: Convert to fraction form
    373,491.76/515,397.72 = 212,324.44/x
  3. Step 3: Cross multiply
    373,491.76x = 515,397.72 × 212,324.44
  4. Step 4: Simplify right side
    373,491.76x = 109,431,532,276.28
  5. Step 5: Solve for x
    x = 109,431,532,276.28/373,491.76
  6. Step 6: Final answer
    x = 292,995.84

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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.