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Finding the Fourth Proportional to 578,828.80, 866,553.60 and 412,940.80

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Solution

The fourth proportional to 578,828.80, 866,553.60 and 412,940.80 is: 618,205.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,828.80 : 866,553.60 = 412,940.80 : x
  2. Step 2: Convert to fraction form
    578,828.80/866,553.60 = 412,940.80/x
  3. Step 3: Cross multiply
    578,828.80x = 866,553.60 × 412,940.80
  4. Step 4: Simplify right side
    578,828.80x = 357,835,336,826.88
  5. Step 5: Solve for x
    x = 357,835,336,826.88/578,828.80
  6. Step 6: Final answer
    x = 618,205.83

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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.