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Finding the Fourth Proportional to 576,439.22, 789,718.05 and 554,883.16

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Solution

The fourth proportional to 576,439.22, 789,718.05 and 554,883.16 is: 760,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,439.22 : 789,718.05 = 554,883.16 : x
  2. Step 2: Convert to fraction form
    576,439.22/789,718.05 = 554,883.16/x
  3. Step 3: Cross multiply
    576,439.22x = 789,718.05 × 554,883.16
  4. Step 4: Simplify right side
    576,439.22x = 438,201,247,093.04
  5. Step 5: Solve for x
    x = 438,201,247,093.04/576,439.22
  6. Step 6: Final answer
    x = 760,186.39

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.