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Finding the Fourth Proportional to 368,889.30, 553,333.95 and 322,233.30

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Solution

The fourth proportional to 368,889.30, 553,333.95 and 322,233.30 is: 483,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,889.30 : 553,333.95 = 322,233.30 : x
  2. Step 2: Convert to fraction form
    368,889.30/553,333.95 = 322,233.30/x
  3. Step 3: Cross multiply
    368,889.30x = 553,333.95 × 322,233.30
  4. Step 4: Simplify right side
    368,889.30x = 178,302,624,710.54
  5. Step 5: Solve for x
    x = 178,302,624,710.54/368,889.30
  6. Step 6: Final answer
    x = 483,349.95

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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.