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Finding the Fourth Proportional to 417,655.57, 626,342.96 and 151,360.33

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Solution

The fourth proportional to 417,655.57, 626,342.96 and 151,360.33 is: 226,989.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,655.57 : 626,342.96 = 151,360.33 : x
  2. Step 2: Convert to fraction form
    417,655.57/626,342.96 = 151,360.33/x
  3. Step 3: Cross multiply
    417,655.57x = 626,342.96 × 151,360.33
  4. Step 4: Simplify right side
    417,655.57x = 94,803,476,361.98
  5. Step 5: Solve for x
    x = 94,803,476,361.98/417,655.57
  6. Step 6: Final answer
    x = 226,989.61

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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.