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Finding the Fourth Proportional to 548,519.80, 822,626.10 and 174,657.40

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Solution

The fourth proportional to 548,519.80, 822,626.10 and 174,657.40 is: 261,937.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,519.80 : 822,626.10 = 174,657.40 : x
  2. Step 2: Convert to fraction form
    548,519.80/822,626.10 = 174,657.40/x
  3. Step 3: Cross multiply
    548,519.80x = 822,626.10 × 174,657.40
  4. Step 4: Simplify right side
    548,519.80x = 143,677,735,798.14
  5. Step 5: Solve for x
    x = 143,677,735,798.14/548,519.80
  6. Step 6: Final answer
    x = 261,937.19

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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.