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Finding the Fourth Proportional to 695,580.75, 959,901.44 and 393,774.75

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Solution

The fourth proportional to 695,580.75, 959,901.44 and 393,774.75 is: 543,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,580.75 : 959,901.44 = 393,774.75 : x
  2. Step 2: Convert to fraction form
    695,580.75/959,901.44 = 393,774.75/x
  3. Step 3: Cross multiply
    695,580.75x = 959,901.44 × 393,774.75
  4. Step 4: Simplify right side
    695,580.75x = 377,984,947,591.77
  5. Step 5: Solve for x
    x = 377,984,947,591.77/695,580.75
  6. Step 6: Final answer
    x = 543,409.16

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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.