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Finding the Fourth Proportional to 366,217.60, 505,428.96 and 205,081.60

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Solution

The fourth proportional to 366,217.60, 505,428.96 and 205,081.60 is: 283,039.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,217.60 : 505,428.96 = 205,081.60 : x
  2. Step 2: Convert to fraction form
    366,217.60/505,428.96 = 205,081.60/x
  3. Step 3: Cross multiply
    366,217.60x = 505,428.96 × 205,081.60
  4. Step 4: Simplify right side
    366,217.60x = 103,654,179,803.14
  5. Step 5: Solve for x
    x = 103,654,179,803.14/366,217.60
  6. Step 6: Final answer
    x = 283,039.86

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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.