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Finding the Fourth Proportional to 361,143.60, 498,212.74 and 233,860.20

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Solution

The fourth proportional to 361,143.60, 498,212.74 and 233,860.20 is: 322,619.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,143.60 : 498,212.74 = 233,860.20 : x
  2. Step 2: Convert to fraction form
    361,143.60/498,212.74 = 233,860.20/x
  3. Step 3: Cross multiply
    361,143.60x = 498,212.74 × 233,860.20
  4. Step 4: Simplify right side
    361,143.60x = 116,512,131,018.95
  5. Step 5: Solve for x
    x = 116,512,131,018.95/361,143.60
  6. Step 6: Final answer
    x = 322,619.95

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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.