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Finding the Fourth Proportional to 322,520.70, 483,781.05 and 97,880.70

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Solution

The fourth proportional to 322,520.70, 483,781.05 and 97,880.70 is: 146,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,520.70 : 483,781.05 = 97,880.70 : x
  2. Step 2: Convert to fraction form
    322,520.70/483,781.05 = 97,880.70/x
  3. Step 3: Cross multiply
    322,520.70x = 483,781.05 × 97,880.70
  4. Step 4: Simplify right side
    322,520.70x = 47,352,827,820.74
  5. Step 5: Solve for x
    x = 47,352,827,820.74/322,520.70
  6. Step 6: Final answer
    x = 146,821.05

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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.