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Finding the Fourth Proportional to 368,458.30, 552,687.45 and 340,464.70

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Solution

The fourth proportional to 368,458.30, 552,687.45 and 340,464.70 is: 510,697.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,458.30 : 552,687.45 = 340,464.70 : x
  2. Step 2: Convert to fraction form
    368,458.30/552,687.45 = 340,464.70/x
  3. Step 3: Cross multiply
    368,458.30x = 552,687.45 × 340,464.70
  4. Step 4: Simplify right side
    368,458.30x = 188,170,566,858.02
  5. Step 5: Solve for x
    x = 188,170,566,858.02/368,458.30
  6. Step 6: Final answer
    x = 510,697.05

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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.