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Finding the Fourth Proportional to 393,596.16, 543,123.36 and 230,228.64

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Solution

The fourth proportional to 393,596.16, 543,123.36 and 230,228.64 is: 317,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,596.16 : 543,123.36 = 230,228.64 : x
  2. Step 2: Convert to fraction form
    393,596.16/543,123.36 = 230,228.64/x
  3. Step 3: Cross multiply
    393,596.16x = 543,123.36 × 230,228.64
  4. Step 4: Simplify right side
    393,596.16x = 125,042,552,525.03
  5. Step 5: Solve for x
    x = 125,042,552,525.03/393,596.16
  6. Step 6: Final answer
    x = 317,692.51

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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.