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Finding the Fourth Proportional to 370,860.20, 556,308.60 and 193,713.20

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Solution

The fourth proportional to 370,860.20, 556,308.60 and 193,713.20 is: 290,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,860.20 : 556,308.60 = 193,713.20 : x
  2. Step 2: Convert to fraction form
    370,860.20/556,308.60 = 193,713.20/x
  3. Step 3: Cross multiply
    370,860.20x = 556,308.60 × 193,713.20
  4. Step 4: Simplify right side
    370,860.20x = 107,764,319,093.52
  5. Step 5: Solve for x
    x = 107,764,319,093.52/370,860.20
  6. Step 6: Final answer
    x = 290,579.36

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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.