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Finding the Fourth Proportional to 805,866.60, 1,111,974.30 and 461,649

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Solution

The fourth proportional to 805,866.60, 1,111,974.30 and 461,649 is: 637,005.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,866.60 : 1,111,974.30 = 461,649 : x
  2. Step 2: Convert to fraction form
    805,866.60/1,111,974.30 = 461,649/x
  3. Step 3: Cross multiply
    805,866.60x = 1,111,974.30 × 461,649
  4. Step 4: Simplify right side
    805,866.60x = 513,341,823,620.70
  5. Step 5: Solve for x
    x = 513,341,823,620.70/805,866.60
  6. Step 6: Final answer
    x = 637,005.96

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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.