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Finding the Fourth Proportional to 544,133.90, 816,200.85 and 419,717.90

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Solution

The fourth proportional to 544,133.90, 816,200.85 and 419,717.90 is: 629,576.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,133.90 : 816,200.85 = 419,717.90 : x
  2. Step 2: Convert to fraction form
    544,133.90/816,200.85 = 419,717.90/x
  3. Step 3: Cross multiply
    544,133.90x = 816,200.85 × 419,717.90
  4. Step 4: Simplify right side
    544,133.90x = 342,574,106,740.22
  5. Step 5: Solve for x
    x = 342,574,106,740.22/544,133.90
  6. Step 6: Final answer
    x = 629,576.85

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.