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Finding the Fourth Proportional to 666,794,685, 920,176,665.30 and 373,439,253

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Solution

The fourth proportional to 666,794,685, 920,176,665.30 and 373,439,253 is: 515,346,169.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,794,685 : 920,176,665.30 = 373,439,253 : x
  2. Step 2: Convert to fraction form
    666,794,685/920,176,665.30 = 373,439,253/x
  3. Step 3: Cross multiply
    666,794,685x = 920,176,665.30 × 373,439,253
  4. Step 4: Simplify right side
    666,794,685x = 343,630,086,517,662,976
  5. Step 5: Solve for x
    x = 343,630,086,517,662,976/666,794,685
  6. Step 6: Final answer
    x = 515,346,169.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.