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Finding the Fourth Proportional to 354,588.16, 489,181.44 and 227,223.04

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Solution

The fourth proportional to 354,588.16, 489,181.44 and 227,223.04 is: 313,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,588.16 : 489,181.44 = 227,223.04 : x
  2. Step 2: Convert to fraction form
    354,588.16/489,181.44 = 227,223.04/x
  3. Step 3: Cross multiply
    354,588.16x = 489,181.44 × 227,223.04
  4. Step 4: Simplify right side
    354,588.16x = 111,153,293,908.38
  5. Step 5: Solve for x
    x = 111,153,293,908.38/354,588.16
  6. Step 6: Final answer
    x = 313,471.53

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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.