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Finding the Fourth Proportional to 606,688.90, 910,361.40 and 251,738.80

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Solution

The fourth proportional to 606,688.90, 910,361.40 and 251,738.80 is: 377,744.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,688.90 : 910,361.40 = 251,738.80 : x
  2. Step 2: Convert to fraction form
    606,688.90/910,361.40 = 251,738.80/x
  3. Step 3: Cross multiply
    606,688.90x = 910,361.40 × 251,738.80
  4. Step 4: Simplify right side
    606,688.90x = 229,173,286,402.32
  5. Step 5: Solve for x
    x = 229,173,286,402.32/606,688.90
  6. Step 6: Final answer
    x = 377,744.32

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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.