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Finding the Fourth Proportional to 635,336.79, 953,180.15 and 214,907.91

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Solution

The fourth proportional to 635,336.79, 953,180.15 and 214,907.91 is: 322,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,336.79 : 953,180.15 = 214,907.91 : x
  2. Step 2: Convert to fraction form
    635,336.79/953,180.15 = 214,907.91/x
  3. Step 3: Cross multiply
    635,336.79x = 953,180.15 × 214,907.91
  4. Step 4: Simplify right side
    635,336.79x = 204,845,952,815.45
  5. Step 5: Solve for x
    x = 204,845,952,815.45/635,336.79
  6. Step 6: Final answer
    x = 322,421.05

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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.