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Finding the Fourth Proportional to 373,543.10, 515,488.82 and 203,777.22

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Solution

The fourth proportional to 373,543.10, 515,488.82 and 203,777.22 is: 281,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,543.10 : 515,488.82 = 203,777.22 : x
  2. Step 2: Convert to fraction form
    373,543.10/515,488.82 = 203,777.22/x
  3. Step 3: Cross multiply
    373,543.10x = 515,488.82 × 203,777.22
  4. Step 4: Simplify right side
    373,543.10x = 105,044,878,680.68
  5. Step 5: Solve for x
    x = 105,044,878,680.68/373,543.10
  6. Step 6: Final answer
    x = 281,212.20

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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.