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Finding the Fourth Proportional to 348,258.66, 480,458.79 and 227,361.30

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Solution

The fourth proportional to 348,258.66, 480,458.79 and 227,361.30 is: 313,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,258.66 : 480,458.79 = 227,361.30 : x
  2. Step 2: Convert to fraction form
    348,258.66/480,458.79 = 227,361.30/x
  3. Step 3: Cross multiply
    348,258.66x = 480,458.79 × 227,361.30
  4. Step 4: Simplify right side
    348,258.66x = 109,237,735,090.83
  5. Step 5: Solve for x
    x = 109,237,735,090.83/348,258.66
  6. Step 6: Final answer
    x = 313,668.40

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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.