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Finding the Fourth Proportional to 287,392.32, 396,571.62 and 176,993.49

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Solution

The fourth proportional to 287,392.32, 396,571.62 and 176,993.49 is: 244,232.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,392.32 : 396,571.62 = 176,993.49 : x
  2. Step 2: Convert to fraction form
    287,392.32/396,571.62 = 176,993.49/x
  3. Step 3: Cross multiply
    287,392.32x = 396,571.62 × 176,993.49
  4. Step 4: Simplify right side
    287,392.32x = 70,190,595,058.75
  5. Step 5: Solve for x
    x = 70,190,595,058.75/287,392.32
  6. Step 6: Final answer
    x = 244,232.67

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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.