Home / 1,247,577.78-1,871,434.73-394,585.72

Finding the Fourth Proportional to 1,247,577.78, 1,871,434.73 and 394,585.72

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Solution

The fourth proportional to 1,247,577.78, 1,871,434.73 and 394,585.72 is: 591,900.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,577.78 : 1,871,434.73 = 394,585.72 : x
  2. Step 2: Convert to fraction form
    1,247,577.78/1,871,434.73 = 394,585.72/x
  3. Step 3: Cross multiply
    1,247,577.78x = 1,871,434.73 × 394,585.72
  4. Step 4: Simplify right side
    1,247,577.78x = 738,441,420,370.06
  5. Step 5: Solve for x
    x = 738,441,420,370.06/1,247,577.78
  6. Step 6: Final answer
    x = 591,900.11

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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.