Home / 428,776.20-591,682.32-237,782.52

Finding the Fourth Proportional to 428,776.20, 591,682.32 and 237,782.52

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Solution

The fourth proportional to 428,776.20, 591,682.32 and 237,782.52 is: 328,123.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,776.20 : 591,682.32 = 237,782.52 : x
  2. Step 2: Convert to fraction form
    428,776.20/591,682.32 = 237,782.52/x
  3. Step 3: Cross multiply
    428,776.20x = 591,682.32 × 237,782.52
  4. Step 4: Simplify right side
    428,776.20x = 140,691,713,089.05
  5. Step 5: Solve for x
    x = 140,691,713,089.05/428,776.20
  6. Step 6: Final answer
    x = 328,123.89

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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.