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Finding the Fourth Proportional to 441,699.05, 662,618.29 and 188,981.18

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Solution

The fourth proportional to 441,699.05, 662,618.29 and 188,981.18 is: 283,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,699.05 : 662,618.29 = 188,981.18 : x
  2. Step 2: Convert to fraction form
    441,699.05/662,618.29 = 188,981.18/x
  3. Step 3: Cross multiply
    441,699.05x = 662,618.29 × 188,981.18
  4. Step 4: Simplify right side
    441,699.05x = 125,222,386,333.78
  5. Step 5: Solve for x
    x = 125,222,386,333.78/441,699.05
  6. Step 6: Final answer
    x = 283,501.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.