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Finding the Fourth Proportional to 613,089.06, 845,583.59 and 398,298.33

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Solution

The fourth proportional to 613,089.06, 845,583.59 and 398,298.33 is: 549,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,089.06 : 845,583.59 = 398,298.33 : x
  2. Step 2: Convert to fraction form
    613,089.06/845,583.59 = 398,298.33/x
  3. Step 3: Cross multiply
    613,089.06x = 845,583.59 × 398,298.33
  4. Step 4: Simplify right side
    613,089.06x = 336,794,527,544.49
  5. Step 5: Solve for x
    x = 336,794,527,544.49/613,089.06
  6. Step 6: Final answer
    x = 549,340.30

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