Home / 331,786.80-497,680.20-304,230.60

Finding the Fourth Proportional to 331,786.80, 497,680.20 and 304,230.60

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Solution

The fourth proportional to 331,786.80, 497,680.20 and 304,230.60 is: 456,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,786.80 : 497,680.20 = 304,230.60 : x
  2. Step 2: Convert to fraction form
    331,786.80/497,680.20 = 304,230.60/x
  3. Step 3: Cross multiply
    331,786.80x = 497,680.20 × 304,230.60
  4. Step 4: Simplify right side
    331,786.80x = 151,409,545,854.12
  5. Step 5: Solve for x
    x = 151,409,545,854.12/331,786.80
  6. Step 6: Final answer
    x = 456,345.90

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1.5x scale

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.