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Finding the Fourth Proportional to 483,121.77, 727,576.14 and 440,026.53

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Solution

The fourth proportional to 483,121.77, 727,576.14 and 440,026.53 is: 662,675.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,121.77 : 727,576.14 = 440,026.53 : x
  2. Step 2: Convert to fraction form
    483,121.77/727,576.14 = 440,026.53/x
  3. Step 3: Cross multiply
    483,121.77x = 727,576.14 × 440,026.53
  4. Step 4: Simplify right side
    483,121.77x = 320,152,804,194.99
  5. Step 5: Solve for x
    x = 320,152,804,194.99/483,121.77
  6. Step 6: Final answer
    x = 662,675.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.