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Finding the Fourth Proportional to 374,455.60, 516,622.62 and 213,196.60

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Solution

The fourth proportional to 374,455.60, 516,622.62 and 213,196.60 is: 294,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,455.60 : 516,622.62 = 213,196.60 : x
  2. Step 2: Convert to fraction form
    374,455.60/516,622.62 = 213,196.60/x
  3. Step 3: Cross multiply
    374,455.60x = 516,622.62 × 213,196.60
  4. Step 4: Simplify right side
    374,455.60x = 110,142,186,067.09
  5. Step 5: Solve for x
    x = 110,142,186,067.09/374,455.60
  6. Step 6: Final answer
    x = 294,139.51

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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.