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Finding the Fourth Proportional to 351,425.12, 484,965.94 and 190,280.32

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Solution

The fourth proportional to 351,425.12, 484,965.94 and 190,280.32 is: 262,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,425.12 : 484,965.94 = 190,280.32 : x
  2. Step 2: Convert to fraction form
    351,425.12/484,965.94 = 190,280.32/x
  3. Step 3: Cross multiply
    351,425.12x = 484,965.94 × 190,280.32
  4. Step 4: Simplify right side
    351,425.12x = 92,279,474,252.30
  5. Step 5: Solve for x
    x = 92,279,474,252.30/351,425.12
  6. Step 6: Final answer
    x = 262,586.45

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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.