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Finding the Fourth Proportional to 502,021.52, 692,794.52 and 275,671.88

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Solution

The fourth proportional to 502,021.52, 692,794.52 and 275,671.88 is: 380,429.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,021.52 : 692,794.52 = 275,671.88 : x
  2. Step 2: Convert to fraction form
    502,021.52/692,794.52 = 275,671.88/x
  3. Step 3: Cross multiply
    502,021.52x = 692,794.52 × 275,671.88
  4. Step 4: Simplify right side
    502,021.52x = 190,983,967,782.10
  5. Step 5: Solve for x
    x = 190,983,967,782.10/502,021.52
  6. Step 6: Final answer
    x = 380,429.84

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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.