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Finding the Fourth Proportional to 417,744,004.20, 626,616,006.30 and 417,744,004.20

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Solution

The fourth proportional to 417,744,004.20, 626,616,006.30 and 417,744,004.20 is: 626,616,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,744,004.20 : 626,616,006.30 = 417,744,004.20 : x
  2. Step 2: Convert to fraction form
    417,744,004.20/626,616,006.30 = 417,744,004.20/x
  3. Step 3: Cross multiply
    417,744,004.20x = 626,616,006.30 × 417,744,004.20
  4. Step 4: Simplify right side
    417,744,004.20x = 261,765,079,567,574,400
  5. Step 5: Solve for x
    x = 261,765,079,567,574,400/417,744,004.20
  6. Step 6: Final answer
    x = 626,616,006.30

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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.