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Finding the Fourth Proportional to 451,056.88, 622,450.20 and 260,078.32

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Solution

The fourth proportional to 451,056.88, 622,450.20 and 260,078.32 is: 358,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,056.88 : 622,450.20 = 260,078.32 : x
  2. Step 2: Convert to fraction form
    451,056.88/622,450.20 = 260,078.32/x
  3. Step 3: Cross multiply
    451,056.88x = 622,450.20 × 260,078.32
  4. Step 4: Simplify right side
    451,056.88x = 161,885,802,299.66
  5. Step 5: Solve for x
    x = 161,885,802,299.66/451,056.88
  6. Step 6: Final answer
    x = 358,903.30

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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.