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Finding the Fourth Proportional to 487,636.01, 673,072.97 and 283,726.33

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Solution

The fourth proportional to 487,636.01, 673,072.97 and 283,726.33 is: 391,621.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,636.01 : 673,072.97 = 283,726.33 : x
  2. Step 2: Convert to fraction form
    487,636.01/673,072.97 = 283,726.33/x
  3. Step 3: Cross multiply
    487,636.01x = 673,072.97 × 283,726.33
  4. Step 4: Simplify right side
    487,636.01x = 190,968,523,600.30
  5. Step 5: Solve for x
    x = 190,968,523,600.30/487,636.01
  6. Step 6: Final answer
    x = 391,621.04

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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.