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Finding the Fourth Proportional to 294,264, 441,397.44 and 72,648

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Solution

The fourth proportional to 294,264, 441,397.44 and 72,648 is: 108,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,264 : 441,397.44 = 72,648 : x
  2. Step 2: Convert to fraction form
    294,264/441,397.44 = 72,648/x
  3. Step 3: Cross multiply
    294,264x = 441,397.44 × 72,648
  4. Step 4: Simplify right side
    294,264x = 32,066,641,221.12
  5. Step 5: Solve for x
    x = 32,066,641,221.12/294,264
  6. Step 6: Final answer
    x = 108,972.36

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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.