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Finding the Fourth Proportional to 641,591.75, 885,617.96 and 369,768.24

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Solution

The fourth proportional to 641,591.75, 885,617.96 and 369,768.24 is: 510,407.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,591.75 : 885,617.96 = 369,768.24 : x
  2. Step 2: Convert to fraction form
    641,591.75/885,617.96 = 369,768.24/x
  3. Step 3: Cross multiply
    641,591.75x = 885,617.96 × 369,768.24
  4. Step 4: Simplify right side
    641,591.75x = 327,473,392,532.75
  5. Step 5: Solve for x
    x = 327,473,392,532.75/641,591.75
  6. Step 6: Final answer
    x = 510,407.73

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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.