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Finding the Fourth Proportional to 451,921.95, 624,477.51 and 329,200.74

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Solution

The fourth proportional to 451,921.95, 624,477.51 and 329,200.74 is: 454,898.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,921.95 : 624,477.51 = 329,200.74 : x
  2. Step 2: Convert to fraction form
    451,921.95/624,477.51 = 329,200.74/x
  3. Step 3: Cross multiply
    451,921.95x = 624,477.51 × 329,200.74
  4. Step 4: Simplify right side
    451,921.95x = 205,578,458,405.36
  5. Step 5: Solve for x
    x = 205,578,458,405.36/451,921.95
  6. Step 6: Final answer
    x = 454,898.15

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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.