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Finding the Fourth Proportional to 412,058.54, 618,081.84 and 249,991.21

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Solution

The fourth proportional to 412,058.54, 618,081.84 and 249,991.21 is: 374,983.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,058.54 : 618,081.84 = 249,991.21 : x
  2. Step 2: Convert to fraction form
    412,058.54/618,081.84 = 249,991.21/x
  3. Step 3: Cross multiply
    412,058.54x = 618,081.84 × 249,991.21
  4. Step 4: Simplify right side
    412,058.54x = 154,515,027,833.23
  5. Step 5: Solve for x
    x = 154,515,027,833.23/412,058.54
  6. Step 6: Final answer
    x = 374,983.19

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1.5x scale

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.