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Finding the Fourth Proportional to 417,744,006.20, 626,616,009.32 and 417,744,006.20

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Solution

The fourth proportional to 417,744,006.20, 626,616,009.32 and 417,744,006.20 is: 626,616,009.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,744,006.20 : 626,616,009.32 = 417,744,006.20 : x
  2. Step 2: Convert to fraction form
    417,744,006.20/626,616,009.32 = 417,744,006.20/x
  3. Step 3: Cross multiply
    417,744,006.20x = 626,616,009.32 × 417,744,006.20
  4. Step 4: Simplify right side
    417,744,006.20x = 261,765,082,082,393,344
  5. Step 5: Solve for x
    x = 261,765,082,082,393,344/417,744,006.20
  6. Step 6: Final answer
    x = 626,616,009.32

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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.