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Finding the Fourth Proportional to 3,296,205.21, 4,945,728.68 and 1,779,587.01

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Solution

The fourth proportional to 3,296,205.21, 4,945,728.68 and 1,779,587.01 is: 2,670,147.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,296,205.21 : 4,945,728.68 = 1,779,587.01 : x
  2. Step 2: Convert to fraction form
    3,296,205.21/4,945,728.68 = 1,779,587.01/x
  3. Step 3: Cross multiply
    3,296,205.21x = 4,945,728.68 × 1,779,587.01
  4. Step 4: Simplify right side
    3,296,205.21x = 8,801,354,518,361.41
  5. Step 5: Solve for x
    x = 8,801,354,518,361.41/3,296,205.21
  6. Step 6: Final answer
    x = 2,670,147.63

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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.