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Finding the Fourth Proportional to 368,959.44, 553,439.28 and 284,842.32

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Solution

The fourth proportional to 368,959.44, 553,439.28 and 284,842.32 is: 427,263.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,959.44 : 553,439.28 = 284,842.32 : x
  2. Step 2: Convert to fraction form
    368,959.44/553,439.28 = 284,842.32/x
  3. Step 3: Cross multiply
    368,959.44x = 553,439.28 × 284,842.32
  4. Step 4: Simplify right side
    368,959.44x = 157,642,928,494.33
  5. Step 5: Solve for x
    x = 157,642,928,494.33/368,959.44
  6. Step 6: Final answer
    x = 427,263.57

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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.