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Finding the Fourth Proportional to 346,328.60, 519,563.10 and 196,640.60

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Solution

The fourth proportional to 346,328.60, 519,563.10 and 196,640.60 is: 295,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,328.60 : 519,563.10 = 196,640.60 : x
  2. Step 2: Convert to fraction form
    346,328.60/519,563.10 = 196,640.60/x
  3. Step 3: Cross multiply
    346,328.60x = 519,563.10 × 196,640.60
  4. Step 4: Simplify right side
    346,328.60x = 102,167,199,721.86
  5. Step 5: Solve for x
    x = 102,167,199,721.86/346,328.60
  6. Step 6: Final answer
    x = 295,000.76

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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.