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Finding the Fourth Proportional to 608,418.60, 910,878.30 and 372,222.60

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Solution

The fourth proportional to 608,418.60, 910,878.30 and 372,222.60 is: 557,263.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,418.60 : 910,878.30 = 372,222.60 : x
  2. Step 2: Convert to fraction form
    608,418.60/910,878.30 = 372,222.60/x
  3. Step 3: Cross multiply
    608,418.60x = 910,878.30 × 372,222.60
  4. Step 4: Simplify right side
    608,418.60x = 339,049,489,109.58
  5. Step 5: Solve for x
    x = 339,049,489,109.58/608,418.60
  6. Step 6: Final answer
    x = 557,263.52

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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.