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Finding the Fourth Proportional to 424,552.78, 636,808.40 and 158,292.54

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Solution

The fourth proportional to 424,552.78, 636,808.40 and 158,292.54 is: 237,431.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,552.78 : 636,808.40 = 158,292.54 : x
  2. Step 2: Convert to fraction form
    424,552.78/636,808.40 = 158,292.54/x
  3. Step 3: Cross multiply
    424,552.78x = 636,808.40 × 158,292.54
  4. Step 4: Simplify right side
    424,552.78x = 100,802,019,129.34
  5. Step 5: Solve for x
    x = 100,802,019,129.34/424,552.78
  6. Step 6: Final answer
    x = 237,431.07

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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.