Home / 418,217.74-577,145.73-227,234.32

Finding the Fourth Proportional to 418,217.74, 577,145.73 and 227,234.32

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Solution

The fourth proportional to 418,217.74, 577,145.73 and 227,234.32 is: 313,586.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,217.74 : 577,145.73 = 227,234.32 : x
  2. Step 2: Convert to fraction form
    418,217.74/577,145.73 = 227,234.32/x
  3. Step 3: Cross multiply
    418,217.74x = 577,145.73 × 227,234.32
  4. Step 4: Simplify right side
    418,217.74x = 131,147,317,497.45
  5. Step 5: Solve for x
    x = 131,147,317,497.45/418,217.74
  6. Step 6: Final answer
    x = 313,586.21

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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.