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Finding the Fourth Proportional to 6,355,931.22, 9,538,095.87 and 2,990,400.66

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Solution

The fourth proportional to 6,355,931.22, 9,538,095.87 and 2,990,400.66 is: 4,487,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,355,931.22 : 9,538,095.87 = 2,990,400.66 : x
  2. Step 2: Convert to fraction form
    6,355,931.22/9,538,095.87 = 2,990,400.66/x
  3. Step 3: Cross multiply
    6,355,931.22x = 9,538,095.87 × 2,990,400.66
  4. Step 4: Simplify right side
    6,355,931.22x = 28,522,728,184,791.27
  5. Step 5: Solve for x
    x = 28,522,728,184,791.27/6,355,931.22
  6. Step 6: Final answer
    x = 4,487,576.60

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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.