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Finding the Fourth Proportional to 346,376.70, 520,099.65 and 188,912.70

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Solution

The fourth proportional to 346,376.70, 520,099.65 and 188,912.70 is: 283,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,376.70 : 520,099.65 = 188,912.70 : x
  2. Step 2: Convert to fraction form
    346,376.70/520,099.65 = 188,912.70/x
  3. Step 3: Cross multiply
    346,376.70x = 520,099.65 × 188,912.70
  4. Step 4: Simplify right side
    346,376.70x = 98,253,429,150.56
  5. Step 5: Solve for x
    x = 98,253,429,150.56/346,376.70
  6. Step 6: Final answer
    x = 283,660.62

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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.