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Finding the Fourth Proportional to 544,271.20, 816,212.40 and 189,296.80

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Solution

The fourth proportional to 544,271.20, 816,212.40 and 189,296.80 is: 283,877.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,271.20 : 816,212.40 = 189,296.80 : x
  2. Step 2: Convert to fraction form
    544,271.20/816,212.40 = 189,296.80/x
  3. Step 3: Cross multiply
    544,271.20x = 816,212.40 × 189,296.80
  4. Step 4: Simplify right side
    544,271.20x = 154,506,395,440.32
  5. Step 5: Solve for x
    x = 154,506,395,440.32/544,271.20
  6. Step 6: Final answer
    x = 283,877.59

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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.