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Finding the Fourth Proportional to 424,942.20, 636,101.10 and 246,920.40

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Solution

The fourth proportional to 424,942.20, 636,101.10 and 246,920.40 is: 369,618.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,942.20 : 636,101.10 = 246,920.40 : x
  2. Step 2: Convert to fraction form
    424,942.20/636,101.10 = 246,920.40/x
  3. Step 3: Cross multiply
    424,942.20x = 636,101.10 × 246,920.40
  4. Step 4: Simplify right side
    424,942.20x = 157,066,338,052.44
  5. Step 5: Solve for x
    x = 157,066,338,052.44/424,942.20
  6. Step 6: Final answer
    x = 369,618.12

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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.