Home / 1,693,752.45-2,337,380.63-919,382.78

Finding the Fourth Proportional to 1,693,752.45, 2,337,380.63 and 919,382.78

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Solution

The fourth proportional to 1,693,752.45, 2,337,380.63 and 919,382.78 is: 1,268,749.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693,752.45 : 2,337,380.63 = 919,382.78 : x
  2. Step 2: Convert to fraction form
    1,693,752.45/2,337,380.63 = 919,382.78/x
  3. Step 3: Cross multiply
    1,693,752.45x = 2,337,380.63 × 919,382.78
  4. Step 4: Simplify right side
    1,693,752.45x = 2,148,947,485,243.73
  5. Step 5: Solve for x
    x = 2,148,947,485,243.73/1,693,752.45
  6. Step 6: Final answer
    x = 1,268,749.45

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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.