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Finding the Fourth Proportional to 283,625.54, 391,411.44 and 156,309.33

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Solution

The fourth proportional to 283,625.54, 391,411.44 and 156,309.33 is: 215,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,625.54 : 391,411.44 = 156,309.33 : x
  2. Step 2: Convert to fraction form
    283,625.54/391,411.44 = 156,309.33/x
  3. Step 3: Cross multiply
    283,625.54x = 391,411.44 × 156,309.33
  4. Step 4: Simplify right side
    283,625.54x = 61,181,259,940.74
  5. Step 5: Solve for x
    x = 61,181,259,940.74/283,625.54
  6. Step 6: Final answer
    x = 215,711.40

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1.5x scale

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.