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Finding the Fourth Proportional to 270,618.47, 373,023.26 and 213,166.78

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Solution

The fourth proportional to 270,618.47, 373,023.26 and 213,166.78 is: 293,831.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,618.47 : 373,023.26 = 213,166.78 : x
  2. Step 2: Convert to fraction form
    270,618.47/373,023.26 = 213,166.78/x
  3. Step 3: Cross multiply
    270,618.47x = 373,023.26 × 213,166.78
  4. Step 4: Simplify right side
    270,618.47x = 79,516,166,375.02
  5. Step 5: Solve for x
    x = 79,516,166,375.02/270,618.47
  6. Step 6: Final answer
    x = 293,831.26

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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.