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Finding the Fourth Proportional to 346,562.10, 520,015.95 and 196,917.30

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Solution

The fourth proportional to 346,562.10, 520,015.95 and 196,917.30 is: 295,474.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,562.10 : 520,015.95 = 196,917.30 : x
  2. Step 2: Convert to fraction form
    346,562.10/520,015.95 = 196,917.30/x
  3. Step 3: Cross multiply
    346,562.10x = 520,015.95 × 196,917.30
  4. Step 4: Simplify right side
    346,562.10x = 102,400,136,830.94
  5. Step 5: Solve for x
    x = 102,400,136,830.94/346,562.10
  6. Step 6: Final answer
    x = 295,474.14

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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.