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Finding the Fourth Proportional to 412,080.50, 619,071.02 and 395,055.39

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Solution

The fourth proportional to 412,080.50, 619,071.02 and 395,055.39 is: 593,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,080.50 : 619,071.02 = 395,055.39 : x
  2. Step 2: Convert to fraction form
    412,080.50/619,071.02 = 395,055.39/x
  3. Step 3: Cross multiply
    412,080.50x = 619,071.02 × 395,055.39
  4. Step 4: Simplify right side
    412,080.50x = 244,567,341,268.52
  5. Step 5: Solve for x
    x = 244,567,341,268.52/412,080.50
  6. Step 6: Final answer
    x = 593,494.10

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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.