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Finding the Fourth Proportional to 562,278.20, 843,806.10 and 404,619.80

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Solution

The fourth proportional to 562,278.20, 843,806.10 and 404,619.80 is: 607,209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,278.20 : 843,806.10 = 404,619.80 : x
  2. Step 2: Convert to fraction form
    562,278.20/843,806.10 = 404,619.80/x
  3. Step 3: Cross multiply
    562,278.20x = 843,806.10 × 404,619.80
  4. Step 4: Simplify right side
    562,278.20x = 341,420,655,420.78
  5. Step 5: Solve for x
    x = 341,420,655,420.78/562,278.20
  6. Step 6: Final answer
    x = 607,209.48

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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.