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Finding the Fourth Proportional to 599,780,003.80, 899,670,005.70 and 478,847,651.80

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Solution

The fourth proportional to 599,780,003.80, 899,670,005.70 and 478,847,651.80 is: 718,271,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,780,003.80 : 899,670,005.70 = 478,847,651.80 : x
  2. Step 2: Convert to fraction form
    599,780,003.80/899,670,005.70 = 478,847,651.80/x
  3. Step 3: Cross multiply
    599,780,003.80x = 899,670,005.70 × 478,847,651.80
  4. Step 4: Simplify right side
    599,780,003.80x = 430,804,869,624,337,664
  5. Step 5: Solve for x
    x = 430,804,869,624,337,664/599,780,003.80
  6. Step 6: Final answer
    x = 718,271,477.70

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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.