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Finding the Fourth Proportional to 467,435.52, 644,751.36 and 288,276.48

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Solution

The fourth proportional to 467,435.52, 644,751.36 and 288,276.48 is: 397,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,435.52 : 644,751.36 = 288,276.48 : x
  2. Step 2: Convert to fraction form
    467,435.52/644,751.36 = 288,276.48/x
  3. Step 3: Cross multiply
    467,435.52x = 644,751.36 × 288,276.48
  4. Step 4: Simplify right side
    467,435.52x = 185,866,652,536.01
  5. Step 5: Solve for x
    x = 185,866,652,536.01/467,435.52
  6. Step 6: Final answer
    x = 397,630.57

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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.