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Finding the Fourth Proportional to 283,982.94, 391,883.27 and 163,039.10

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Solution

The fourth proportional to 283,982.94, 391,883.27 and 163,039.10 is: 224,986.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,982.94 : 391,883.27 = 163,039.10 : x
  2. Step 2: Convert to fraction form
    283,982.94/391,883.27 = 163,039.10/x
  3. Step 3: Cross multiply
    283,982.94x = 391,883.27 × 163,039.10
  4. Step 4: Simplify right side
    283,982.94x = 63,892,292,871.25
  5. Step 5: Solve for x
    x = 63,892,292,871.25/283,982.94
  6. Step 6: Final answer
    x = 224,986.38

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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.