Home / 1,247,535.81-1,871,534.30-394,822.35

Finding the Fourth Proportional to 1,247,535.81, 1,871,534.30 and 394,822.35

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Solution

The fourth proportional to 1,247,535.81, 1,871,534.30 and 394,822.35 is: 592,306.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,535.81 : 1,871,534.30 = 394,822.35 : x
  2. Step 2: Convert to fraction form
    1,247,535.81/1,871,534.30 = 394,822.35/x
  3. Step 3: Cross multiply
    1,247,535.81x = 1,871,534.30 × 394,822.35
  4. Step 4: Simplify right side
    1,247,535.81x = 738,923,568,457.49
  5. Step 5: Solve for x
    x = 738,923,568,457.49/1,247,535.81
  6. Step 6: Final answer
    x = 592,306.50

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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.