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Finding the Fourth Proportional to 544,936.80, 816,530.40 and 357,729.60

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Solution

The fourth proportional to 544,936.80, 816,530.40 and 357,729.60 is: 536,020.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,936.80 : 816,530.40 = 357,729.60 : x
  2. Step 2: Convert to fraction form
    544,936.80/816,530.40 = 357,729.60/x
  3. Step 3: Cross multiply
    544,936.80x = 816,530.40 × 357,729.60
  4. Step 4: Simplify right side
    544,936.80x = 292,097,093,379.84
  5. Step 5: Solve for x
    x = 292,097,093,379.84/544,936.80
  6. Step 6: Final answer
    x = 536,020.13

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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.