Home / 1,291,557.38-1,937,408.94-393,028.40

Finding the Fourth Proportional to 1,291,557.38, 1,937,408.94 and 393,028.40

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Solution

The fourth proportional to 1,291,557.38, 1,937,408.94 and 393,028.40 is: 589,564.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,557.38 : 1,937,408.94 = 393,028.40 : x
  2. Step 2: Convert to fraction form
    1,291,557.38/1,937,408.94 = 393,028.40/x
  3. Step 3: Cross multiply
    1,291,557.38x = 1,937,408.94 × 393,028.40
  4. Step 4: Simplify right side
    1,291,557.38x = 761,456,735,833.90
  5. Step 5: Solve for x
    x = 761,456,735,833.90/1,291,557.38
  6. Step 6: Final answer
    x = 589,564.77

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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.