Home / 681,748.26-942,513.24-511,687.14

Finding the Fourth Proportional to 681,748.26, 942,513.24 and 511,687.14

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Solution

The fourth proportional to 681,748.26, 942,513.24 and 511,687.14 is: 707,404.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,748.26 : 942,513.24 = 511,687.14 : x
  2. Step 2: Convert to fraction form
    681,748.26/942,513.24 = 511,687.14/x
  3. Step 3: Cross multiply
    681,748.26x = 942,513.24 × 511,687.14
  4. Step 4: Simplify right side
    681,748.26x = 482,271,904,187.73
  5. Step 5: Solve for x
    x = 482,271,904,187.73/681,748.26
  6. Step 6: Final answer
    x = 707,404.67

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.