Home / 1,693,600.87-2,337,139.87-919,215.09

Finding the Fourth Proportional to 1,693,600.87, 2,337,139.87 and 919,215.09

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Solution

The fourth proportional to 1,693,600.87, 2,337,139.87 and 919,215.09 is: 1,268,500.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693,600.87 : 2,337,139.87 = 919,215.09 : x
  2. Step 2: Convert to fraction form
    1,693,600.87/2,337,139.87 = 919,215.09/x
  3. Step 3: Cross multiply
    1,693,600.87x = 2,337,139.87 × 919,215.09
  4. Step 4: Simplify right side
    1,693,600.87x = 2,148,334,233,646.60
  5. Step 5: Solve for x
    x = 2,148,334,233,646.60/1,693,600.87
  6. Step 6: Final answer
    x = 1,268,500.91

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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.