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Finding the Fourth Proportional to 371,243.20, 556,864.80 and 267,044.80

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Solution

The fourth proportional to 371,243.20, 556,864.80 and 267,044.80 is: 400,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,243.20 : 556,864.80 = 267,044.80 : x
  2. Step 2: Convert to fraction form
    371,243.20/556,864.80 = 267,044.80/x
  3. Step 3: Cross multiply
    371,243.20x = 556,864.80 × 267,044.80
  4. Step 4: Simplify right side
    371,243.20x = 148,707,849,143.04
  5. Step 5: Solve for x
    x = 148,707,849,143.04/371,243.20
  6. Step 6: Final answer
    x = 400,567.20

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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.