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Finding the Fourth Proportional to 486,093.93, 670,702.17 and 282,026.58

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Solution

The fourth proportional to 486,093.93, 670,702.17 and 282,026.58 is: 389,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,093.93 : 670,702.17 = 282,026.58 : x
  2. Step 2: Convert to fraction form
    486,093.93/670,702.17 = 282,026.58/x
  3. Step 3: Cross multiply
    486,093.93x = 670,702.17 × 282,026.58
  4. Step 4: Simplify right side
    486,093.93x = 189,155,839,203.68
  5. Step 5: Solve for x
    x = 189,155,839,203.68/486,093.93
  6. Step 6: Final answer
    x = 389,134.34

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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.