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Finding the Fourth Proportional to 671,705.86, 925,377.41 and 467,405.46

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Solution

The fourth proportional to 671,705.86, 925,377.41 and 467,405.46 is: 643,922.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,705.86 : 925,377.41 = 467,405.46 : x
  2. Step 2: Convert to fraction form
    671,705.86/925,377.41 = 467,405.46/x
  3. Step 3: Cross multiply
    671,705.86x = 925,377.41 × 467,405.46
  4. Step 4: Simplify right side
    671,705.86x = 432,526,453,994.66
  5. Step 5: Solve for x
    x = 432,526,453,994.66/671,705.86
  6. Step 6: Final answer
    x = 643,922.41

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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.