Home / 419,847.10-629,539.53-286,877.50

Finding the Fourth Proportional to 419,847.10, 629,539.53 and 286,877.50

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Solution

The fourth proportional to 419,847.10, 629,539.53 and 286,877.50 is: 430,158.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,847.10 : 629,539.53 = 286,877.50 : x
  2. Step 2: Convert to fraction form
    419,847.10/629,539.53 = 286,877.50/x
  3. Step 3: Cross multiply
    419,847.10x = 629,539.53 × 286,877.50
  4. Step 4: Simplify right side
    419,847.10x = 180,600,726,517.58
  5. Step 5: Solve for x
    x = 180,600,726,517.58/419,847.10
  6. Step 6: Final answer
    x = 430,158.33

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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.