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Finding the Fourth Proportional to 476,360.24, 714,675.72 and 388,445.36

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Solution

The fourth proportional to 476,360.24, 714,675.72 and 388,445.36 is: 582,778.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,360.24 : 714,675.72 = 388,445.36 : x
  2. Step 2: Convert to fraction form
    476,360.24/714,675.72 = 388,445.36/x
  3. Step 3: Cross multiply
    476,360.24x = 714,675.72 × 388,445.36
  4. Step 4: Simplify right side
    476,360.24x = 277,612,467,338.66
  5. Step 5: Solve for x
    x = 277,612,467,338.66/476,360.24
  6. Step 6: Final answer
    x = 582,778.42

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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.