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Finding the Fourth Proportional to 662,658.40, 993,987.60 and 164,022.40

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Solution

The fourth proportional to 662,658.40, 993,987.60 and 164,022.40 is: 246,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,658.40 : 993,987.60 = 164,022.40 : x
  2. Step 2: Convert to fraction form
    662,658.40/993,987.60 = 164,022.40/x
  3. Step 3: Cross multiply
    662,658.40x = 993,987.60 × 164,022.40
  4. Step 4: Simplify right side
    662,658.40x = 163,036,231,722.24
  5. Step 5: Solve for x
    x = 163,036,231,722.24/662,658.40
  6. Step 6: Final answer
    x = 246,033.60

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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.