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Finding the Fourth Proportional to 424,226.76, 636,307.14 and 246,620.40

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Solution

The fourth proportional to 424,226.76, 636,307.14 and 246,620.40 is: 369,911.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,226.76 : 636,307.14 = 246,620.40 : x
  2. Step 2: Convert to fraction form
    424,226.76/636,307.14 = 246,620.40/x
  3. Step 3: Cross multiply
    424,226.76x = 636,307.14 × 246,620.40
  4. Step 4: Simplify right side
    424,226.76x = 156,926,321,389.66
  5. Step 5: Solve for x
    x = 156,926,321,389.66/424,226.76
  6. Step 6: Final answer
    x = 369,911.42

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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.