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Finding the Fourth Proportional to 545,603,225.40, 818,404,838.10 and 327,924,991.80

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Solution

The fourth proportional to 545,603,225.40, 818,404,838.10 and 327,924,991.80 is: 491,887,487.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,603,225.40 : 818,404,838.10 = 327,924,991.80 : x
  2. Step 2: Convert to fraction form
    545,603,225.40/818,404,838.10 = 327,924,991.80/x
  3. Step 3: Cross multiply
    545,603,225.40x = 818,404,838.10 × 327,924,991.80
  4. Step 4: Simplify right side
    545,603,225.40x = 268,375,399,823,022,848
  5. Step 5: Solve for x
    x = 268,375,399,823,022,848/545,603,225.40
  6. Step 6: Final answer
    x = 491,887,487.70

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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.