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Finding the Fourth Proportional to 313,651.98, 432,825.63 and 177,683.15

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Solution

The fourth proportional to 313,651.98, 432,825.63 and 177,683.15 is: 245,194.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,651.98 : 432,825.63 = 177,683.15 : x
  2. Step 2: Convert to fraction form
    313,651.98/432,825.63 = 177,683.15/x
  3. Step 3: Cross multiply
    313,651.98x = 432,825.63 × 177,683.15
  4. Step 4: Simplify right side
    313,651.98x = 76,905,821,754.89
  5. Step 5: Solve for x
    x = 76,905,821,754.89/313,651.98
  6. Step 6: Final answer
    x = 245,194.76

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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.