Home / 1,292,410.21-1,783,557.36-719,489.11

Finding the Fourth Proportional to 1,292,410.21, 1,783,557.36 and 719,489.11

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Solution

The fourth proportional to 1,292,410.21, 1,783,557.36 and 719,489.11 is: 992,912.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,410.21 : 1,783,557.36 = 719,489.11 : x
  2. Step 2: Convert to fraction form
    1,292,410.21/1,783,557.36 = 719,489.11/x
  3. Step 3: Cross multiply
    1,292,410.21x = 1,783,557.36 × 719,489.11
  4. Step 4: Simplify right side
    1,292,410.21x = 1,283,250,097,580.35
  5. Step 5: Solve for x
    x = 1,283,250,097,580.35/1,292,410.21
  6. Step 6: Final answer
    x = 992,912.38

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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.