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Finding the Fourth Proportional to 346,653.80, 520,056.30 and 196,965.80

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Solution

The fourth proportional to 346,653.80, 520,056.30 and 196,965.80 is: 295,491.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,653.80 : 520,056.30 = 196,965.80 : x
  2. Step 2: Convert to fraction form
    346,653.80/520,056.30 = 196,965.80/x
  3. Step 3: Cross multiply
    346,653.80x = 520,056.30 × 196,965.80
  4. Step 4: Simplify right side
    346,653.80x = 102,433,305,174.54
  5. Step 5: Solve for x
    x = 102,433,305,174.54/346,653.80
  6. Step 6: Final answer
    x = 295,491.66

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1.5x scale

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.