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Finding the Fourth Proportional to 488,352,671.20, 732,529,006.80 and 422,595,704.80

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Solution

The fourth proportional to 488,352,671.20, 732,529,006.80 and 422,595,704.80 is: 633,893,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,352,671.20 : 732,529,006.80 = 422,595,704.80 : x
  2. Step 2: Convert to fraction form
    488,352,671.20/732,529,006.80 = 422,595,704.80/x
  3. Step 3: Cross multiply
    488,352,671.20x = 732,529,006.80 × 422,595,704.80
  4. Step 4: Simplify right side
    488,352,671.20x = 309,563,611,915,089,984
  5. Step 5: Solve for x
    x = 309,563,611,915,089,984/488,352,671.20
  6. Step 6: Final answer
    x = 633,893,557.20

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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.