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Finding the Fourth Proportional to 367,457.28, 550,672.08 and 198,613.32

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Solution

The fourth proportional to 367,457.28, 550,672.08 and 198,613.32 is: 297,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,457.28 : 550,672.08 = 198,613.32 : x
  2. Step 2: Convert to fraction form
    367,457.28/550,672.08 = 198,613.32/x
  3. Step 3: Cross multiply
    367,457.28x = 550,672.08 × 198,613.32
  4. Step 4: Simplify right side
    367,457.28x = 109,370,810,040.11
  5. Step 5: Solve for x
    x = 109,370,810,040.11/367,457.28
  6. Step 6: Final answer
    x = 297,642.25

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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.