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Finding the Fourth Proportional to 494,878.80, 742,318.20 and 246,046.80

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Solution

The fourth proportional to 494,878.80, 742,318.20 and 246,046.80 is: 369,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,878.80 : 742,318.20 = 246,046.80 : x
  2. Step 2: Convert to fraction form
    494,878.80/742,318.20 = 246,046.80/x
  3. Step 3: Cross multiply
    494,878.80x = 742,318.20 × 246,046.80
  4. Step 4: Simplify right side
    494,878.80x = 182,645,017,691.76
  5. Step 5: Solve for x
    x = 182,645,017,691.76/494,878.80
  6. Step 6: Final answer
    x = 369,070.20

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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.