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Finding the Fourth Proportional to 373,438, 515,344.44 and 203,673.34

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Solution

The fourth proportional to 373,438, 515,344.44 and 203,673.34 is: 281,069.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,438 : 515,344.44 = 203,673.34 : x
  2. Step 2: Convert to fraction form
    373,438/515,344.44 = 203,673.34/x
  3. Step 3: Cross multiply
    373,438x = 515,344.44 × 203,673.34
  4. Step 4: Simplify right side
    373,438x = 104,961,923,345.23
  5. Step 5: Solve for x
    x = 104,961,923,345.23/373,438
  6. Step 6: Final answer
    x = 281,069.21

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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.