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Finding the Fourth Proportional to 548,792.40, 823,424.16 and 212,069.58

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Solution

The fourth proportional to 548,792.40, 823,424.16 and 212,069.58 is: 318,195.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,792.40 : 823,424.16 = 212,069.58 : x
  2. Step 2: Convert to fraction form
    548,792.40/823,424.16 = 212,069.58/x
  3. Step 3: Cross multiply
    548,792.40x = 823,424.16 × 212,069.58
  4. Step 4: Simplify right side
    548,792.40x = 174,623,215,773.05
  5. Step 5: Solve for x
    x = 174,623,215,773.05/548,792.40
  6. Step 6: Final answer
    x = 318,195.40

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1.5x scale

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.