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Finding the Fourth Proportional to 472,392,743.40, 708,589,115.10 and 472,392,743.40

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Solution

The fourth proportional to 472,392,743.40, 708,589,115.10 and 472,392,743.40 is: 708,589,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,743.40 : 708,589,115.10 = 472,392,743.40 : x
  2. Step 2: Convert to fraction form
    472,392,743.40/708,589,115.10 = 472,392,743.40/x
  3. Step 3: Cross multiply
    472,392,743.40x = 708,589,115.10 × 472,392,743.40
  4. Step 4: Simplify right side
    472,392,743.40x = 334,732,356,025,467,328
  5. Step 5: Solve for x
    x = 334,732,356,025,467,328/472,392,743.40
  6. Step 6: Final answer
    x = 708,589,115.10

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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.