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Finding the Fourth Proportional to 315,923,939.60, 473,035,603.80 and 315,923,939.60

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Solution

The fourth proportional to 315,923,939.60, 473,035,603.80 and 315,923,939.60 is: 473,035,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,923,939.60 : 473,035,603.80 = 315,923,939.60 : x
  2. Step 2: Convert to fraction form
    315,923,939.60/473,035,603.80 = 315,923,939.60/x
  3. Step 3: Cross multiply
    315,923,939.60x = 473,035,603.80 × 315,923,939.60
  4. Step 4: Simplify right side
    315,923,939.60x = 149,443,271,523,560,736
  5. Step 5: Solve for x
    x = 149,443,271,523,560,736/315,923,939.60
  6. Step 6: Final answer
    x = 473,035,603.80

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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.