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Finding the Fourth Proportional to 654,661.98, 903,424.83 and 368,182.05

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Solution

The fourth proportional to 654,661.98, 903,424.83 and 368,182.05 is: 508,086.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,661.98 : 903,424.83 = 368,182.05 : x
  2. Step 2: Convert to fraction form
    654,661.98/903,424.83 = 368,182.05/x
  3. Step 3: Cross multiply
    654,661.98x = 903,424.83 × 368,182.05
  4. Step 4: Simplify right side
    654,661.98x = 332,624,804,089.39
  5. Step 5: Solve for x
    x = 332,624,804,089.39/654,661.98
  6. Step 6: Final answer
    x = 508,086.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.