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Finding the Fourth Proportional to 544,485.36, 751,279.14 and 318,087.12

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Solution

The fourth proportional to 544,485.36, 751,279.14 and 318,087.12 is: 438,895.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,485.36 : 751,279.14 = 318,087.12 : x
  2. Step 2: Convert to fraction form
    544,485.36/751,279.14 = 318,087.12/x
  3. Step 3: Cross multiply
    544,485.36x = 751,279.14 × 318,087.12
  4. Step 4: Simplify right side
    544,485.36x = 238,972,217,958.68
  5. Step 5: Solve for x
    x = 238,972,217,958.68/544,485.36
  6. Step 6: Final answer
    x = 438,895.58

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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.