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Finding the Fourth Proportional to 424,602.90, 636,049.53 and 196,577.10

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Solution

The fourth proportional to 424,602.90, 636,049.53 and 196,577.10 is: 294,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,602.90 : 636,049.53 = 196,577.10 : x
  2. Step 2: Convert to fraction form
    424,602.90/636,049.53 = 196,577.10/x
  3. Step 3: Cross multiply
    424,602.90x = 636,049.53 × 196,577.10
  4. Step 4: Simplify right side
    424,602.90x = 125,032,772,063.76
  5. Step 5: Solve for x
    x = 125,032,772,063.76/424,602.90
  6. Step 6: Final answer
    x = 294,469.90

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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.