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Finding the Fourth Proportional to 367,391.40, 550,573.83 and 198,547.71

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Solution

The fourth proportional to 367,391.40, 550,573.83 and 198,547.71 is: 297,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,391.40 : 550,573.83 = 198,547.71 : x
  2. Step 2: Convert to fraction form
    367,391.40/550,573.83 = 198,547.71/x
  3. Step 3: Cross multiply
    367,391.40x = 550,573.83 × 198,547.71
  4. Step 4: Simplify right side
    367,391.40x = 109,315,173,132.43
  5. Step 5: Solve for x
    x = 109,315,173,132.43/367,391.40
  6. Step 6: Final answer
    x = 297,544.18

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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.