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Finding the Fourth Proportional to 576,436.47, 789,714.29 and 554,880.41

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Solution

The fourth proportional to 576,436.47, 789,714.29 and 554,880.41 is: 760,182.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,436.47 : 789,714.29 = 554,880.41 : x
  2. Step 2: Convert to fraction form
    576,436.47/789,714.29 = 554,880.41/x
  3. Step 3: Cross multiply
    576,436.47x = 789,714.29 × 554,880.41
  4. Step 4: Simplify right side
    576,436.47x = 438,196,982,295.09
  5. Step 5: Solve for x
    x = 438,196,982,295.09/576,436.47
  6. Step 6: Final answer
    x = 760,182.61

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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.