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Finding the Fourth Proportional to 417,656.45, 626,344.27 and 151,361.21

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Solution

The fourth proportional to 417,656.45, 626,344.27 and 151,361.21 is: 226,990.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,656.45 : 626,344.27 = 151,361.21 : x
  2. Step 2: Convert to fraction form
    417,656.45/626,344.27 = 151,361.21/x
  3. Step 3: Cross multiply
    417,656.45x = 626,344.27 × 151,361.21
  4. Step 4: Simplify right side
    417,656.45x = 94,804,223,073.64
  5. Step 5: Solve for x
    x = 94,804,223,073.64/417,656.45
  6. Step 6: Final answer
    x = 226,990.93

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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.