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Finding the Fourth Proportional to 551,634.40, 828,229.20 and 341,682.40

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Solution

The fourth proportional to 551,634.40, 828,229.20 and 341,682.40 is: 513,005.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,634.40 : 828,229.20 = 341,682.40 : x
  2. Step 2: Convert to fraction form
    551,634.40/828,229.20 = 341,682.40/x
  3. Step 3: Cross multiply
    551,634.40x = 828,229.20 × 341,682.40
  4. Step 4: Simplify right side
    551,634.40x = 282,991,340,806.08
  5. Step 5: Solve for x
    x = 282,991,340,806.08/551,634.40
  6. Step 6: Final answer
    x = 513,005.25

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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.