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Finding the Fourth Proportional to 372,208.61, 513,483.14 and 228,883.97

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Solution

The fourth proportional to 372,208.61, 513,483.14 and 228,883.97 is: 315,758.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,208.61 : 513,483.14 = 228,883.97 : x
  2. Step 2: Convert to fraction form
    372,208.61/513,483.14 = 228,883.97/x
  3. Step 3: Cross multiply
    372,208.61x = 513,483.14 × 228,883.97
  4. Step 4: Simplify right side
    372,208.61x = 117,528,061,467.18
  5. Step 5: Solve for x
    x = 117,528,061,467.18/372,208.61
  6. Step 6: Final answer
    x = 315,758.58

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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.