Home / 639,213.38-882,117.06-352,741.76

Finding the Fourth Proportional to 639,213.38, 882,117.06 and 352,741.76

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Solution

The fourth proportional to 639,213.38, 882,117.06 and 352,741.76 is: 486,785.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,213.38 : 882,117.06 = 352,741.76 : x
  2. Step 2: Convert to fraction form
    639,213.38/882,117.06 = 352,741.76/x
  3. Step 3: Cross multiply
    639,213.38x = 882,117.06 × 352,741.76
  4. Step 4: Simplify right side
    639,213.38x = 311,159,524,270.43
  5. Step 5: Solve for x
    x = 311,159,524,270.43/639,213.38
  6. Step 6: Final answer
    x = 486,785.06

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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.