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Finding the Fourth Proportional to 839,592.28, 1,259,876.28 and 353,238.79

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Solution

The fourth proportional to 839,592.28, 1,259,876.28 and 353,238.79 is: 530,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,592.28 : 1,259,876.28 = 353,238.79 : x
  2. Step 2: Convert to fraction form
    839,592.28/1,259,876.28 = 353,238.79/x
  3. Step 3: Cross multiply
    839,592.28x = 1,259,876.28 × 353,238.79
  4. Step 4: Simplify right side
    839,592.28x = 445,037,172,696.90
  5. Step 5: Solve for x
    x = 445,037,172,696.90/839,592.28
  6. Step 6: Final answer
    x = 530,063.44

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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.