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Finding the Fourth Proportional to 544,082.20, 816,123.30 and 189,132.10

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Solution

The fourth proportional to 544,082.20, 816,123.30 and 189,132.10 is: 283,698.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,082.20 : 816,123.30 = 189,132.10 : x
  2. Step 2: Convert to fraction form
    544,082.20/816,123.30 = 189,132.10/x
  3. Step 3: Cross multiply
    544,082.20x = 816,123.30 × 189,132.10
  4. Step 4: Simplify right side
    544,082.20x = 154,355,113,587.93
  5. Step 5: Solve for x
    x = 154,355,113,587.93/544,082.20
  6. Step 6: Final answer
    x = 283,698.15

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Double scale
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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.