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Finding the Fourth Proportional to 370,573.60, 555,730.80 and 193,021.60

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Solution

The fourth proportional to 370,573.60, 555,730.80 and 193,021.60 is: 289,464.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,573.60 : 555,730.80 = 193,021.60 : x
  2. Step 2: Convert to fraction form
    370,573.60/555,730.80 = 193,021.60/x
  3. Step 3: Cross multiply
    370,573.60x = 555,730.80 × 193,021.60
  4. Step 4: Simplify right side
    370,573.60x = 107,268,048,185.28
  5. Step 5: Solve for x
    x = 107,268,048,185.28/370,573.60
  6. Step 6: Final answer
    x = 289,464.89

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1.5x scale

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.