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Finding the Fourth Proportional to 551,202.80, 825,929.40 and 363,995.60

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Solution

The fourth proportional to 551,202.80, 825,929.40 and 363,995.60 is: 545,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,202.80 : 825,929.40 = 363,995.60 : x
  2. Step 2: Convert to fraction form
    551,202.80/825,929.40 = 363,995.60/x
  3. Step 3: Cross multiply
    551,202.80x = 825,929.40 × 363,995.60
  4. Step 4: Simplify right side
    551,202.80x = 300,634,667,510.64
  5. Step 5: Solve for x
    x = 300,634,667,510.64/551,202.80
  6. Step 6: Final answer
    x = 545,415.71

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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.