Home / 428,811.36-591,778.80-237,811.92

Finding the Fourth Proportional to 428,811.36, 591,778.80 and 237,811.92

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Solution

The fourth proportional to 428,811.36, 591,778.80 and 237,811.92 is: 328,191.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,811.36 : 591,778.80 = 237,811.92 : x
  2. Step 2: Convert to fraction form
    428,811.36/591,778.80 = 237,811.92/x
  3. Step 3: Cross multiply
    428,811.36x = 591,778.80 × 237,811.92
  4. Step 4: Simplify right side
    428,811.36x = 140,732,052,643.30
  5. Step 5: Solve for x
    x = 140,732,052,643.30/428,811.36
  6. Step 6: Final answer
    x = 328,191.06

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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.