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Finding the Fourth Proportional to 1,784,745.60, 2,672,017.22 and 1,671,617.55

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Solution

The fourth proportional to 1,784,745.60, 2,672,017.22 and 1,671,617.55 is: 2,502,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784,745.60 : 2,672,017.22 = 1,671,617.55 : x
  2. Step 2: Convert to fraction form
    1,784,745.60/2,672,017.22 = 1,671,617.55/x
  3. Step 3: Cross multiply
    1,784,745.60x = 2,672,017.22 × 1,671,617.55
  4. Step 4: Simplify right side
    1,784,745.60x = 4,466,590,883,650.47
  5. Step 5: Solve for x
    x = 4,466,590,883,650.47/1,784,745.60
  6. Step 6: Final answer
    x = 2,502,648.50

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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.