Home / 639,238.56-882,148.32-352,758.60

Finding the Fourth Proportional to 639,238.56, 882,148.32 and 352,758.60

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Solution

The fourth proportional to 639,238.56, 882,148.32 and 352,758.60 is: 486,806.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,238.56 : 882,148.32 = 352,758.60 : x
  2. Step 2: Convert to fraction form
    639,238.56/882,148.32 = 352,758.60/x
  3. Step 3: Cross multiply
    639,238.56x = 882,148.32 × 352,758.60
  4. Step 4: Simplify right side
    639,238.56x = 311,185,406,355.55
  5. Step 5: Solve for x
    x = 311,185,406,355.55/639,238.56
  6. Step 6: Final answer
    x = 486,806.38

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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.