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Finding the Fourth Proportional to 220,804.94, 329,509.28 and 219,541.94

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Solution

The fourth proportional to 220,804.94, 329,509.28 and 219,541.94 is: 327,624.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,804.94 : 329,509.28 = 219,541.94 : x
  2. Step 2: Convert to fraction form
    220,804.94/329,509.28 = 219,541.94/x
  3. Step 3: Cross multiply
    220,804.94x = 329,509.28 × 219,541.94
  4. Step 4: Simplify right side
    220,804.94x = 72,341,106,579.20
  5. Step 5: Solve for x
    x = 72,341,106,579.20/220,804.94
  6. Step 6: Final answer
    x = 327,624.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.