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Finding the Fourth Proportional to 283,456.77, 391,141.92 and 174,543.63

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Solution

The fourth proportional to 283,456.77, 391,141.92 and 174,543.63 is: 240,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,456.77 : 391,141.92 = 174,543.63 : x
  2. Step 2: Convert to fraction form
    283,456.77/391,141.92 = 174,543.63/x
  3. Step 3: Cross multiply
    283,456.77x = 391,141.92 × 174,543.63
  4. Step 4: Simplify right side
    283,456.77x = 68,271,330,561.97
  5. Step 5: Solve for x
    x = 68,271,330,561.97/283,456.77
  6. Step 6: Final answer
    x = 240,852.71

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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.