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Finding the Fourth Proportional to 700,640.28, 1,050,921.54 and 622,647

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Solution

The fourth proportional to 700,640.28, 1,050,921.54 and 622,647 is: 933,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,640.28 : 1,050,921.54 = 622,647 : x
  2. Step 2: Convert to fraction form
    700,640.28/1,050,921.54 = 622,647/x
  3. Step 3: Cross multiply
    700,640.28x = 1,050,921.54 × 622,647
  4. Step 4: Simplify right side
    700,640.28x = 654,353,144,116.38
  5. Step 5: Solve for x
    x = 654,353,144,116.38/700,640.28
  6. Step 6: Final answer
    x = 933,935.95

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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.