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Finding the Fourth Proportional to 568,512,939.40, 852,769,409.10 and 568,512,939.40

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Solution

The fourth proportional to 568,512,939.40, 852,769,409.10 and 568,512,939.40 is: 852,769,409.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,512,939.40 : 852,769,409.10 = 568,512,939.40 : x
  2. Step 2: Convert to fraction form
    568,512,939.40/852,769,409.10 = 568,512,939.40/x
  3. Step 3: Cross multiply
    568,512,939.40x = 852,769,409.10 × 568,512,939.40
  4. Step 4: Simplify right side
    568,512,939.40x = 484,810,443,397,842,112
  5. Step 5: Solve for x
    x = 484,810,443,397,842,112/568,512,939.40
  6. Step 6: Final answer
    x = 852,769,409.10

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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.