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Finding the Fourth Proportional to 4,899,438.64, 7,348,682.79 and 1,487,754.77

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Solution

The fourth proportional to 4,899,438.64, 7,348,682.79 and 1,487,754.77 is: 2,231,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899,438.64 : 7,348,682.79 = 1,487,754.77 : x
  2. Step 2: Convert to fraction form
    4,899,438.64/7,348,682.79 = 1,487,754.77/x
  3. Step 3: Cross multiply
    4,899,438.64x = 7,348,682.79 × 1,487,754.77
  4. Step 4: Simplify right side
    4,899,438.64x = 10,933,037,874,039.41
  5. Step 5: Solve for x
    x = 10,933,037,874,039.41/4,899,438.64
  6. Step 6: Final answer
    x = 2,231,487.87

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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.