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Finding the Fourth Proportional to 612,736.54, 845,231.30 and 367,657.95

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Solution

The fourth proportional to 612,736.54, 845,231.30 and 367,657.95 is: 507,160.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,736.54 : 845,231.30 = 367,657.95 : x
  2. Step 2: Convert to fraction form
    612,736.54/845,231.30 = 367,657.95/x
  3. Step 3: Cross multiply
    612,736.54x = 845,231.30 × 367,657.95
  4. Step 4: Simplify right side
    612,736.54x = 310,756,005,195.55
  5. Step 5: Solve for x
    x = 310,756,005,195.55/612,736.54
  6. Step 6: Final answer
    x = 507,160.88

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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.