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Finding the Fourth Proportional to 554,444.28, 831,540.94 and 254,636.64

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Solution

The fourth proportional to 554,444.28, 831,540.94 and 254,636.64 is: 381,897.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,444.28 : 831,540.94 = 254,636.64 : x
  2. Step 2: Convert to fraction form
    554,444.28/831,540.94 = 254,636.64/x
  3. Step 3: Cross multiply
    554,444.28x = 831,540.94 × 254,636.64
  4. Step 4: Simplify right side
    554,444.28x = 211,740,790,347.45
  5. Step 5: Solve for x
    x = 211,740,790,347.45/554,444.28
  6. Step 6: Final answer
    x = 381,897.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.