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Finding the Fourth Proportional to 432,171.84, 648,257.76 and 116,628.72

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Solution

The fourth proportional to 432,171.84, 648,257.76 and 116,628.72 is: 174,943.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,171.84 : 648,257.76 = 116,628.72 : x
  2. Step 2: Convert to fraction form
    432,171.84/648,257.76 = 116,628.72/x
  3. Step 3: Cross multiply
    432,171.84x = 648,257.76 × 116,628.72
  4. Step 4: Simplify right side
    432,171.84x = 75,605,472,778.87
  5. Step 5: Solve for x
    x = 75,605,472,778.87/432,171.84
  6. Step 6: Final answer
    x = 174,943.08

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Similar ratio
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1.5x scale

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.