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Finding the Fourth Proportional to 283,862.52, 391,712.38 and 162,918.68

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Solution

The fourth proportional to 283,862.52, 391,712.38 and 162,918.68 is: 224,817.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,862.52 : 391,712.38 = 162,918.68 : x
  2. Step 2: Convert to fraction form
    283,862.52/391,712.38 = 162,918.68/x
  3. Step 3: Cross multiply
    283,862.52x = 391,712.38 × 162,918.68
  4. Step 4: Simplify right side
    283,862.52x = 63,817,263,889.26
  5. Step 5: Solve for x
    x = 63,817,263,889.26/283,862.52
  6. Step 6: Final answer
    x = 224,817.51

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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.