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Finding the Fourth Proportional to 519,192.66, 778,789.02 and 219,595.52

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Solution

The fourth proportional to 519,192.66, 778,789.02 and 219,595.52 is: 329,393.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,192.66 : 778,789.02 = 219,595.52 : x
  2. Step 2: Convert to fraction form
    519,192.66/778,789.02 = 219,595.52/x
  3. Step 3: Cross multiply
    519,192.66x = 778,789.02 × 219,595.52
  4. Step 4: Simplify right side
    519,192.66x = 171,018,579,817.19
  5. Step 5: Solve for x
    x = 171,018,579,817.19/519,192.66
  6. Step 6: Final answer
    x = 329,393.29

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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.