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Finding the Fourth Proportional to 418,260.64, 577,203.34 and 227,274.03

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Solution

The fourth proportional to 418,260.64, 577,203.34 and 227,274.03 is: 313,640.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,260.64 : 577,203.34 = 227,274.03 : x
  2. Step 2: Convert to fraction form
    418,260.64/577,203.34 = 227,274.03/x
  3. Step 3: Cross multiply
    418,260.64x = 577,203.34 × 227,274.03
  4. Step 4: Simplify right side
    418,260.64x = 131,183,329,211.26
  5. Step 5: Solve for x
    x = 131,183,329,211.26/418,260.64
  6. Step 6: Final answer
    x = 313,640.15

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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.