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Finding the Fourth Proportional to 576,436.72, 789,714.63 and 554,880.66

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Solution

The fourth proportional to 576,436.72, 789,714.63 and 554,880.66 is: 760,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,436.72 : 789,714.63 = 554,880.66 : x
  2. Step 2: Convert to fraction form
    576,436.72/789,714.63 = 554,880.66/x
  3. Step 3: Cross multiply
    576,436.72x = 789,714.63 × 554,880.66
  4. Step 4: Simplify right side
    576,436.72x = 438,197,368,383.08
  5. Step 5: Solve for x
    x = 438,197,368,383.08/576,436.72
  6. Step 6: Final answer
    x = 760,182.95

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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.