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Finding the Fourth Proportional to 434,238.40, 651,450.48 and 134,712.48

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Solution

The fourth proportional to 434,238.40, 651,450.48 and 134,712.48 is: 202,097.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,238.40 : 651,450.48 = 134,712.48 : x
  2. Step 2: Convert to fraction form
    434,238.40/651,450.48 = 134,712.48/x
  3. Step 3: Cross multiply
    434,238.40x = 651,450.48 × 134,712.48
  4. Step 4: Simplify right side
    434,238.40x = 87,758,509,757.99
  5. Step 5: Solve for x
    x = 87,758,509,757.99/434,238.40
  6. Step 6: Final answer
    x = 202,097.53

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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.