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Finding the Fourth Proportional to 424,603.42, 636,050.25 and 196,577.62

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Solution

The fourth proportional to 424,603.42, 636,050.25 and 196,577.62 is: 294,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,603.42 : 636,050.25 = 196,577.62 : x
  2. Step 2: Convert to fraction form
    424,603.42/636,050.25 = 196,577.62/x
  3. Step 3: Cross multiply
    424,603.42x = 636,050.25 × 196,577.62
  4. Step 4: Simplify right side
    424,603.42x = 125,033,244,345.41
  5. Step 5: Solve for x
    x = 125,033,244,345.41/424,603.42
  6. Step 6: Final answer
    x = 294,470.65

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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.