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Finding the Fourth Proportional to 625,782.54, 938,362.94 and 199,262.68

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Solution

The fourth proportional to 625,782.54, 938,362.94 and 199,262.68 is: 298,795.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,782.54 : 938,362.94 = 199,262.68 : x
  2. Step 2: Convert to fraction form
    625,782.54/938,362.94 = 199,262.68/x
  3. Step 3: Cross multiply
    625,782.54x = 938,362.94 × 199,262.68
  4. Step 4: Simplify right side
    625,782.54x = 186,980,714,237.08
  5. Step 5: Solve for x
    x = 186,980,714,237.08/625,782.54
  6. Step 6: Final answer
    x = 298,795.03

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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.