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Finding the Fourth Proportional to 519,097.80, 778,865.40 and 282,610.20

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Solution

The fourth proportional to 519,097.80, 778,865.40 and 282,610.20 is: 424,034.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,097.80 : 778,865.40 = 282,610.20 : x
  2. Step 2: Convert to fraction form
    519,097.80/778,865.40 = 282,610.20/x
  3. Step 3: Cross multiply
    519,097.80x = 778,865.40 × 282,610.20
  4. Step 4: Simplify right side
    519,097.80x = 220,115,306,467.08
  5. Step 5: Solve for x
    x = 220,115,306,467.08/519,097.80
  6. Step 6: Final answer
    x = 424,034.37

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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.