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Finding the Fourth Proportional to 671,999.10, 1,008,085.05 and 335,211.90

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Solution

The fourth proportional to 671,999.10, 1,008,085.05 and 335,211.90 is: 502,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,999.10 : 1,008,085.05 = 335,211.90 : x
  2. Step 2: Convert to fraction form
    671,999.10/1,008,085.05 = 335,211.90/x
  3. Step 3: Cross multiply
    671,999.10x = 1,008,085.05 × 335,211.90
  4. Step 4: Simplify right side
    671,999.10x = 337,922,104,972.10
  5. Step 5: Solve for x
    x = 337,922,104,972.10/671,999.10
  6. Step 6: Final answer
    x = 502,860.95

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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.