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Finding the Fourth Proportional to 6,457,408.88, 8,910,447.86 and 3,703,954.01

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Solution

The fourth proportional to 6,457,408.88, 8,910,447.86 and 3,703,954.01 is: 5,111,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457,408.88 : 8,910,447.86 = 3,703,954.01 : x
  2. Step 2: Convert to fraction form
    6,457,408.88/8,910,447.86 = 3,703,954.01/x
  3. Step 3: Cross multiply
    6,457,408.88x = 8,910,447.86 × 3,703,954.01
  4. Step 4: Simplify right side
    6,457,408.88x = 33,003,889,018,870.91
  5. Step 5: Solve for x
    x = 33,003,889,018,870.91/6,457,408.88
  6. Step 6: Final answer
    x = 5,111,011.19

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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.