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Finding the Fourth Proportional to 663,134.40, 994,701.36 and 164,498.40

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Solution

The fourth proportional to 663,134.40, 994,701.36 and 164,498.40 is: 246,747.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,134.40 : 994,701.36 = 164,498.40 : x
  2. Step 2: Convert to fraction form
    663,134.40/994,701.36 = 164,498.40/x
  3. Step 3: Cross multiply
    663,134.40x = 994,701.36 × 164,498.40
  4. Step 4: Simplify right side
    663,134.40x = 163,626,782,197.82
  5. Step 5: Solve for x
    x = 163,626,782,197.82/663,134.40
  6. Step 6: Final answer
    x = 246,747.54

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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.