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Finding the Fourth Proportional to 569,991,348.90, 786,182,477.51 and 523,099,879.67

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Solution

The fourth proportional to 569,991,348.90, 786,182,477.51 and 523,099,879.67 is: 721,505,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,991,348.90 : 786,182,477.51 = 523,099,879.67 : x
  2. Step 2: Convert to fraction form
    569,991,348.90/786,182,477.51 = 523,099,879.67/x
  3. Step 3: Cross multiply
    569,991,348.90x = 786,182,477.51 × 523,099,879.67
  4. Step 4: Simplify right side
    569,991,348.90x = 411,251,959,377,597,056
  5. Step 5: Solve for x
    x = 411,251,959,377,597,056/569,991,348.90
  6. Step 6: Final answer
    x = 721,505,616.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.