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Finding the Fourth Proportional to 265,662.80, 367,081.32 and 212,387.60

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Solution

The fourth proportional to 265,662.80, 367,081.32 and 212,387.60 is: 293,467.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,662.80 : 367,081.32 = 212,387.60 : x
  2. Step 2: Convert to fraction form
    265,662.80/367,081.32 = 212,387.60/x
  3. Step 3: Cross multiply
    265,662.80x = 367,081.32 × 212,387.60
  4. Step 4: Simplify right side
    265,662.80x = 77,963,520,559.63
  5. Step 5: Solve for x
    x = 77,963,520,559.63/265,662.80
  6. Step 6: Final answer
    x = 293,467.96

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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.