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Finding the Fourth Proportional to 364,252.72, 502,985.99 and 228,520

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Solution

The fourth proportional to 364,252.72, 502,985.99 and 228,520 is: 315,556.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,252.72 : 502,985.99 = 228,520 : x
  2. Step 2: Convert to fraction form
    364,252.72/502,985.99 = 228,520/x
  3. Step 3: Cross multiply
    364,252.72x = 502,985.99 × 228,520
  4. Step 4: Simplify right side
    364,252.72x = 114,942,358,434.80
  5. Step 5: Solve for x
    x = 114,942,358,434.80/364,252.72
  6. Step 6: Final answer
    x = 315,556.62

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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.