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Finding the Fourth Proportional to 424,600.40, 636,045.77 and 196,574.60

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Solution

The fourth proportional to 424,600.40, 636,045.77 and 196,574.60 is: 294,466.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,600.40 : 636,045.77 = 196,574.60 : x
  2. Step 2: Convert to fraction form
    424,600.40/636,045.77 = 196,574.60/x
  3. Step 3: Cross multiply
    424,600.40x = 636,045.77 × 196,574.60
  4. Step 4: Simplify right side
    424,600.40x = 125,030,442,819.44
  5. Step 5: Solve for x
    x = 125,030,442,819.44/424,600.40
  6. Step 6: Final answer
    x = 294,466.14

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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.