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Finding the Fourth Proportional to 554,621.76, 765,025.68 and 363,647.52

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Solution

The fourth proportional to 554,621.76, 765,025.68 and 363,647.52 is: 501,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,621.76 : 765,025.68 = 363,647.52 : x
  2. Step 2: Convert to fraction form
    554,621.76/765,025.68 = 363,647.52/x
  3. Step 3: Cross multiply
    554,621.76x = 765,025.68 × 363,647.52
  4. Step 4: Simplify right side
    554,621.76x = 278,199,691,268.31
  5. Step 5: Solve for x
    x = 278,199,691,268.31/554,621.76
  6. Step 6: Final answer
    x = 501,602.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.