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Finding the Fourth Proportional to 5,908,905.64, 8,860,034.22 and 1,864,639.90

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Solution

The fourth proportional to 5,908,905.64, 8,860,034.22 and 1,864,639.90 is: 2,795,910.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,908,905.64 : 8,860,034.22 = 1,864,639.90 : x
  2. Step 2: Convert to fraction form
    5,908,905.64/8,860,034.22 = 1,864,639.90/x
  3. Step 3: Cross multiply
    5,908,905.64x = 8,860,034.22 × 1,864,639.90
  4. Step 4: Simplify right side
    5,908,905.64x = 16,520,773,321,977.38
  5. Step 5: Solve for x
    x = 16,520,773,321,977.38/5,908,905.64
  6. Step 6: Final answer
    x = 2,795,910.84

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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.