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Finding the Fourth Proportional to 283,495.55, 391,224.53 and 156,173.27

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Solution

The fourth proportional to 283,495.55, 391,224.53 and 156,173.27 is: 215,519.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,495.55 : 391,224.53 = 156,173.27 : x
  2. Step 2: Convert to fraction form
    283,495.55/391,224.53 = 156,173.27/x
  3. Step 3: Cross multiply
    283,495.55x = 391,224.53 × 156,173.27
  4. Step 4: Simplify right side
    283,495.55x = 61,098,812,588.62
  5. Step 5: Solve for x
    x = 61,098,812,588.62/283,495.55
  6. Step 6: Final answer
    x = 215,519.48

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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.