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Finding the Fourth Proportional to 319,113.89, 440,522.70 and 227,292.29

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Solution

The fourth proportional to 319,113.89, 440,522.70 and 227,292.29 is: 313,767.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,113.89 : 440,522.70 = 227,292.29 : x
  2. Step 2: Convert to fraction form
    319,113.89/440,522.70 = 227,292.29/x
  3. Step 3: Cross multiply
    319,113.89x = 440,522.70 × 227,292.29
  4. Step 4: Simplify right side
    319,113.89x = 100,127,413,528.94
  5. Step 5: Solve for x
    x = 100,127,413,528.94/319,113.89
  6. Step 6: Final answer
    x = 313,767.02

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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.