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Finding the Fourth Proportional to 281,318.40, 419,558.40 and 236,390.40

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Solution

The fourth proportional to 281,318.40, 419,558.40 and 236,390.40 is: 352,552.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,318.40 : 419,558.40 = 236,390.40 : x
  2. Step 2: Convert to fraction form
    281,318.40/419,558.40 = 236,390.40/x
  3. Step 3: Cross multiply
    281,318.40x = 419,558.40 × 236,390.40
  4. Step 4: Simplify right side
    281,318.40x = 99,179,577,999.36
  5. Step 5: Solve for x
    x = 99,179,577,999.36/281,318.40
  6. Step 6: Final answer
    x = 352,552.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.