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Finding the Fourth Proportional to 547,954.40, 822,061.20 and 173,977.40

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Solution

The fourth proportional to 547,954.40, 822,061.20 and 173,977.40 is: 261,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,954.40 : 822,061.20 = 173,977.40 : x
  2. Step 2: Convert to fraction form
    547,954.40/822,061.20 = 173,977.40/x
  3. Step 3: Cross multiply
    547,954.40x = 822,061.20 × 173,977.40
  4. Step 4: Simplify right side
    547,954.40x = 143,020,070,216.88
  5. Step 5: Solve for x
    x = 143,020,070,216.88/547,954.40
  6. Step 6: Final answer
    x = 261,007.25

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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.