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Finding the Fourth Proportional to 622,908.32, 933,591.51 and 442,706.49

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Solution

The fourth proportional to 622,908.32, 933,591.51 and 442,706.49 is: 663,511.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,908.32 : 933,591.51 = 442,706.49 : x
  2. Step 2: Convert to fraction form
    622,908.32/933,591.51 = 442,706.49/x
  3. Step 3: Cross multiply
    622,908.32x = 933,591.51 × 442,706.49
  4. Step 4: Simplify right side
    622,908.32x = 413,307,020,485.90
  5. Step 5: Solve for x
    x = 413,307,020,485.90/622,908.32
  6. Step 6: Final answer
    x = 663,511.81

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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.