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Finding the Fourth Proportional to 346,539.60, 519,982.20 and 196,894.80

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Solution

The fourth proportional to 346,539.60, 519,982.20 and 196,894.80 is: 295,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,539.60 : 519,982.20 = 196,894.80 : x
  2. Step 2: Convert to fraction form
    346,539.60/519,982.20 = 196,894.80/x
  3. Step 3: Cross multiply
    346,539.60x = 519,982.20 × 196,894.80
  4. Step 4: Simplify right side
    346,539.60x = 102,381,791,272.56
  5. Step 5: Solve for x
    x = 102,381,791,272.56/346,539.60
  6. Step 6: Final answer
    x = 295,440.38

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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.