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Finding the Fourth Proportional to 482,609.52, 666,032.63 and 278,669.03

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Solution

The fourth proportional to 482,609.52, 666,032.63 and 278,669.03 is: 384,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,609.52 : 666,032.63 = 278,669.03 : x
  2. Step 2: Convert to fraction form
    482,609.52/666,032.63 = 278,669.03/x
  3. Step 3: Cross multiply
    482,609.52x = 666,032.63 × 278,669.03
  4. Step 4: Simplify right side
    482,609.52x = 185,602,662,226.94
  5. Step 5: Solve for x
    x = 185,602,662,226.94/482,609.52
  6. Step 6: Final answer
    x = 384,581.44

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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.