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Finding the Fourth Proportional to 367,057.23, 550,407.86 and 215,303.90

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Solution

The fourth proportional to 367,057.23, 550,407.86 and 215,303.90 is: 322,851.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,057.23 : 550,407.86 = 215,303.90 : x
  2. Step 2: Convert to fraction form
    367,057.23/550,407.86 = 215,303.90/x
  3. Step 3: Cross multiply
    367,057.23x = 550,407.86 × 215,303.90
  4. Step 4: Simplify right side
    367,057.23x = 118,504,955,020.10
  5. Step 5: Solve for x
    x = 118,504,955,020.10/367,057.23
  6. Step 6: Final answer
    x = 322,851.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.