Home / 808,196.20-1,213,028.70-409,114.60

Finding the Fourth Proportional to 808,196.20, 1,213,028.70 and 409,114.60

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Solution

The fourth proportional to 808,196.20, 1,213,028.70 and 409,114.60 is: 614,043.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,196.20 : 1,213,028.70 = 409,114.60 : x
  2. Step 2: Convert to fraction form
    808,196.20/1,213,028.70 = 409,114.60/x
  3. Step 3: Cross multiply
    808,196.20x = 1,213,028.70 × 409,114.60
  4. Step 4: Simplify right side
    808,196.20x = 496,267,751,389.02
  5. Step 5: Solve for x
    x = 496,267,751,389.02/808,196.20
  6. Step 6: Final answer
    x = 614,043.66

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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.