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Finding the Fourth Proportional to 549,266.80, 822,517.80 and 361,260.40

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Solution

The fourth proportional to 549,266.80, 822,517.80 and 361,260.40 is: 540,981.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,266.80 : 822,517.80 = 361,260.40 : x
  2. Step 2: Convert to fraction form
    549,266.80/822,517.80 = 361,260.40/x
  3. Step 3: Cross multiply
    549,266.80x = 822,517.80 × 361,260.40
  4. Step 4: Simplify right side
    549,266.80x = 297,143,109,435.12
  5. Step 5: Solve for x
    x = 297,143,109,435.12/549,266.80
  6. Step 6: Final answer
    x = 540,981.38

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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.