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Finding the Fourth Proportional to 395,778,138.84, 593,671,778.88 and 119,431,747.32

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Solution

The fourth proportional to 395,778,138.84, 593,671,778.88 and 119,431,747.32 is: 179,149,000.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,778,138.84 : 593,671,778.88 = 119,431,747.32 : x
  2. Step 2: Convert to fraction form
    395,778,138.84/593,671,778.88 = 119,431,747.32/x
  3. Step 3: Cross multiply
    395,778,138.84x = 593,671,778.88 × 119,431,747.32
  4. Step 4: Simplify right side
    395,778,138.84x = 70,903,257,886,211,064
  5. Step 5: Solve for x
    x = 70,903,257,886,211,064/395,778,138.84
  6. Step 6: Final answer
    x = 179,149,000.23

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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.