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Finding the Fourth Proportional to 461,644.75, 637,357.79 and 298,386.73

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Solution

The fourth proportional to 461,644.75, 637,357.79 and 298,386.73 is: 411,959.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,644.75 : 637,357.79 = 298,386.73 : x
  2. Step 2: Convert to fraction form
    461,644.75/637,357.79 = 298,386.73/x
  3. Step 3: Cross multiply
    461,644.75x = 637,357.79 × 298,386.73
  4. Step 4: Simplify right side
    461,644.75x = 190,179,102,119.40
  5. Step 5: Solve for x
    x = 190,179,102,119.40/461,644.75
  6. Step 6: Final answer
    x = 411,959.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.