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Finding the Fourth Proportional to 568,353,640.80, 852,530,461.20 and 384,687,631.20

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Solution

The fourth proportional to 568,353,640.80, 852,530,461.20 and 384,687,631.20 is: 577,031,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,353,640.80 : 852,530,461.20 = 384,687,631.20 : x
  2. Step 2: Convert to fraction form
    568,353,640.80/852,530,461.20 = 384,687,631.20/x
  3. Step 3: Cross multiply
    568,353,640.80x = 852,530,461.20 × 384,687,631.20
  4. Step 4: Simplify right side
    568,353,640.80x = 327,957,923,644,871,488
  5. Step 5: Solve for x
    x = 327,957,923,644,871,488/568,353,640.80
  6. Step 6: Final answer
    x = 577,031,446.80

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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.