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Finding the Fourth Proportional to 475,367,071.70, 713,050,607.55 and 217,086,745.70

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Solution

The fourth proportional to 475,367,071.70, 713,050,607.55 and 217,086,745.70 is: 325,630,118.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,367,071.70 : 713,050,607.55 = 217,086,745.70 : x
  2. Step 2: Convert to fraction form
    475,367,071.70/713,050,607.55 = 217,086,745.70/x
  3. Step 3: Cross multiply
    475,367,071.70x = 713,050,607.55 × 217,086,745.70
  4. Step 4: Simplify right side
    475,367,071.70x = 154,793,835,912,437,344
  5. Step 5: Solve for x
    x = 154,793,835,912,437,344/475,367,071.70
  6. Step 6: Final answer
    x = 325,630,118.55

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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.