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Finding the Fourth Proportional to 544,532.30, 751,344.46 and 318,134.06

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Solution

The fourth proportional to 544,532.30, 751,344.46 and 318,134.06 is: 438,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,532.30 : 751,344.46 = 318,134.06 : x
  2. Step 2: Convert to fraction form
    544,532.30/751,344.46 = 318,134.06/x
  3. Step 3: Cross multiply
    544,532.30x = 751,344.46 × 318,134.06
  4. Step 4: Simplify right side
    544,532.30x = 239,028,263,518.31
  5. Step 5: Solve for x
    x = 239,028,263,518.31/544,532.30
  6. Step 6: Final answer
    x = 438,960.67

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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.