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Finding the Fourth Proportional to 315,923,937.60, 473,035,600.80 and 315,923,937.60

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Solution

The fourth proportional to 315,923,937.60, 473,035,600.80 and 315,923,937.60 is: 473,035,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,923,937.60 : 473,035,600.80 = 315,923,937.60 : x
  2. Step 2: Convert to fraction form
    315,923,937.60/473,035,600.80 = 315,923,937.60/x
  3. Step 3: Cross multiply
    315,923,937.60x = 473,035,600.80 × 315,923,937.60
  4. Step 4: Simplify right side
    315,923,937.60x = 149,443,269,629,717,728
  5. Step 5: Solve for x
    x = 149,443,269,629,717,728/315,923,937.60
  6. Step 6: Final answer
    x = 473,035,600.80

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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.