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Finding the Fourth Proportional to 331,503.64, 457,475.60 and 188,263.64

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Solution

The fourth proportional to 331,503.64, 457,475.60 and 188,263.64 is: 259,804.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,503.64 : 457,475.60 = 188,263.64 : x
  2. Step 2: Convert to fraction form
    331,503.64/457,475.60 = 188,263.64/x
  3. Step 3: Cross multiply
    331,503.64x = 457,475.60 × 188,263.64
  4. Step 4: Simplify right side
    331,503.64x = 86,126,022,222.55
  5. Step 5: Solve for x
    x = 86,126,022,222.55/331,503.64
  6. Step 6: Final answer
    x = 259,804.15

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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.