Home / 394,600.81-544,548.40-213,312.85

Finding the Fourth Proportional to 394,600.81, 544,548.40 and 213,312.85

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Solution

The fourth proportional to 394,600.81, 544,548.40 and 213,312.85 is: 294,371.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,600.81 : 544,548.40 = 213,312.85 : x
  2. Step 2: Convert to fraction form
    394,600.81/544,548.40 = 213,312.85/x
  3. Step 3: Cross multiply
    394,600.81x = 544,548.40 × 213,312.85
  4. Step 4: Simplify right side
    394,600.81x = 116,159,171,166.94
  5. Step 5: Solve for x
    x = 116,159,171,166.94/394,600.81
  6. Step 6: Final answer
    x = 294,371.34

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1.5x scale

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.