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Finding the Fourth Proportional to 548,121.70, 822,182.55 and 359,164.90

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Solution

The fourth proportional to 548,121.70, 822,182.55 and 359,164.90 is: 538,747.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,121.70 : 822,182.55 = 359,164.90 : x
  2. Step 2: Convert to fraction form
    548,121.70/822,182.55 = 359,164.90/x
  3. Step 3: Cross multiply
    548,121.70x = 822,182.55 × 359,164.90
  4. Step 4: Simplify right side
    548,121.70x = 295,299,113,352.50
  5. Step 5: Solve for x
    x = 295,299,113,352.50/548,121.70
  6. Step 6: Final answer
    x = 538,747.35

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Similar ratio
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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.