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Finding the Fourth Proportional to 611,200.36, 843,414.27 and 339,246.88

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Solution

The fourth proportional to 611,200.36, 843,414.27 and 339,246.88 is: 468,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,200.36 : 843,414.27 = 339,246.88 : x
  2. Step 2: Convert to fraction form
    611,200.36/843,414.27 = 339,246.88/x
  3. Step 3: Cross multiply
    611,200.36x = 843,414.27 × 339,246.88
  4. Step 4: Simplify right side
    611,200.36x = 286,125,659,644.98
  5. Step 5: Solve for x
    x = 286,125,659,644.98/611,200.36
  6. Step 6: Final answer
    x = 468,137.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.