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Finding the Fourth Proportional to 544,130.40, 816,195.60 and 419,714.40

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Solution

The fourth proportional to 544,130.40, 816,195.60 and 419,714.40 is: 629,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,130.40 : 816,195.60 = 419,714.40 : x
  2. Step 2: Convert to fraction form
    544,130.40/816,195.60 = 419,714.40/x
  3. Step 3: Cross multiply
    544,130.40x = 816,195.60 × 419,714.40
  4. Step 4: Simplify right side
    544,130.40x = 342,569,046,536.64
  5. Step 5: Solve for x
    x = 342,569,046,536.64/544,130.40
  6. Step 6: Final answer
    x = 629,571.60

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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.