Home / 428,968.45-591,977.19-237,981.79

Finding the Fourth Proportional to 428,968.45, 591,977.19 and 237,981.79

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Solution

The fourth proportional to 428,968.45, 591,977.19 and 237,981.79 is: 328,415.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,968.45 : 591,977.19 = 237,981.79 : x
  2. Step 2: Convert to fraction form
    428,968.45/591,977.19 = 237,981.79/x
  3. Step 3: Cross multiply
    428,968.45x = 591,977.19 × 237,981.79
  4. Step 4: Simplify right side
    428,968.45x = 140,879,791,315.37
  5. Step 5: Solve for x
    x = 140,879,791,315.37/428,968.45
  6. Step 6: Final answer
    x = 328,415.27

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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.