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Finding the Fourth Proportional to 283,801.62, 391,645.76 and 156,477.58

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Solution

The fourth proportional to 283,801.62, 391,645.76 and 156,477.58 is: 215,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,801.62 : 391,645.76 = 156,477.58 : x
  2. Step 2: Convert to fraction form
    283,801.62/391,645.76 = 156,477.58/x
  3. Step 3: Cross multiply
    283,801.62x = 391,645.76 × 156,477.58
  4. Step 4: Simplify right side
    283,801.62x = 61,283,780,742.06
  5. Step 5: Solve for x
    x = 61,283,780,742.06/283,801.62
  6. Step 6: Final answer
    x = 215,938.80

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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.