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Finding the Fourth Proportional to 576,437.72, 789,716.00 and 554,881.66

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Solution

The fourth proportional to 576,437.72, 789,716.00 and 554,881.66 is: 760,184.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,437.72 : 789,716.00 = 554,881.66 : x
  2. Step 2: Convert to fraction form
    576,437.72/789,716.00 = 554,881.66/x
  3. Step 3: Cross multiply
    576,437.72x = 789,716.00 × 554,881.66
  4. Step 4: Simplify right side
    576,437.72x = 438,198,918,285.57
  5. Step 5: Solve for x
    x = 438,198,918,285.57/576,437.72
  6. Step 6: Final answer
    x = 760,184.32

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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.