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Finding the Fourth Proportional to 482,609.52, 666,032.67 and 278,669.07

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Solution

The fourth proportional to 482,609.52, 666,032.67 and 278,669.07 is: 384,581.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,609.52 : 666,032.67 = 278,669.07 : x
  2. Step 2: Convert to fraction form
    482,609.52/666,032.67 = 278,669.07/x
  3. Step 3: Cross multiply
    482,609.52x = 666,032.67 × 278,669.07
  4. Step 4: Simplify right side
    482,609.52x = 185,602,704,738.52
  5. Step 5: Solve for x
    x = 185,602,704,738.52/482,609.52
  6. Step 6: Final answer
    x = 384,581.52

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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.