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Finding the Fourth Proportional to 882,980.86, 1,324,668.72 and 322,015.36

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Solution

The fourth proportional to 882,980.86, 1,324,668.72 and 322,015.36 is: 483,095.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,980.86 : 1,324,668.72 = 322,015.36 : x
  2. Step 2: Convert to fraction form
    882,980.86/1,324,668.72 = 322,015.36/x
  3. Step 3: Cross multiply
    882,980.86x = 1,324,668.72 × 322,015.36
  4. Step 4: Simplify right side
    882,980.86x = 426,563,674,751.54
  5. Step 5: Solve for x
    x = 426,563,674,751.54/882,980.86
  6. Step 6: Final answer
    x = 483,095.04

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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.