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Finding the Fourth Proportional to 340,896.20, 511,574.70 and 191,136.20

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Solution

The fourth proportional to 340,896.20, 511,574.70 and 191,136.20 is: 286,833.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,896.20 : 511,574.70 = 191,136.20 : x
  2. Step 2: Convert to fraction form
    340,896.20/511,574.70 = 191,136.20/x
  3. Step 3: Cross multiply
    340,896.20x = 511,574.70 × 191,136.20
  4. Step 4: Simplify right side
    340,896.20x = 97,780,444,174.14
  5. Step 5: Solve for x
    x = 97,780,444,174.14/340,896.20
  6. Step 6: Final answer
    x = 286,833.48

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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.