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Finding the Fourth Proportional to 579,243.01, 798,517.78 and 406,635.40

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Solution

The fourth proportional to 579,243.01, 798,517.78 and 406,635.40 is: 560,568.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,243.01 : 798,517.78 = 406,635.40 : x
  2. Step 2: Convert to fraction form
    579,243.01/798,517.78 = 406,635.40/x
  3. Step 3: Cross multiply
    579,243.01x = 798,517.78 × 406,635.40
  4. Step 4: Simplify right side
    579,243.01x = 324,705,599,697.37
  5. Step 5: Solve for x
    x = 324,705,599,697.37/579,243.01
  6. Step 6: Final answer
    x = 560,568.87

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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.