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Finding the Fourth Proportional to 693,377, 1,040,065.50 and 168,065

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Solution

The fourth proportional to 693,377, 1,040,065.50 and 168,065 is: 252,097.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,377 : 1,040,065.50 = 168,065 : x
  2. Step 2: Convert to fraction form
    693,377/1,040,065.50 = 168,065/x
  3. Step 3: Cross multiply
    693,377x = 1,040,065.50 × 168,065
  4. Step 4: Simplify right side
    693,377x = 174,798,608,257.50
  5. Step 5: Solve for x
    x = 174,798,608,257.50/693,377
  6. Step 6: Final answer
    x = 252,097.50

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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.