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Finding the Fourth Proportional to 598,553.40, 826,000.39 and 326,620.47

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Solution

The fourth proportional to 598,553.40, 826,000.39 and 326,620.47 is: 450,734.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,553.40 : 826,000.39 = 326,620.47 : x
  2. Step 2: Convert to fraction form
    598,553.40/826,000.39 = 326,620.47/x
  3. Step 3: Cross multiply
    598,553.40x = 826,000.39 × 326,620.47
  4. Step 4: Simplify right side
    598,553.40x = 269,788,635,601.98
  5. Step 5: Solve for x
    x = 269,788,635,601.98/598,553.40
  6. Step 6: Final answer
    x = 450,734.45

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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.