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Finding the Fourth Proportional to 702,766.36, 969,817.98 and 380,476.54

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Solution

The fourth proportional to 702,766.36, 969,817.98 and 380,476.54 is: 525,057.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,766.36 : 969,817.98 = 380,476.54 : x
  2. Step 2: Convert to fraction form
    702,766.36/969,817.98 = 380,476.54/x
  3. Step 3: Cross multiply
    702,766.36x = 969,817.98 × 380,476.54
  4. Step 4: Simplify right side
    702,766.36x = 368,992,989,460.19
  5. Step 5: Solve for x
    x = 368,992,989,460.19/702,766.36
  6. Step 6: Final answer
    x = 525,057.84

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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.