Home / 639,157.58-882,036.46-352,677.44

Finding the Fourth Proportional to 639,157.58, 882,036.46 and 352,677.44

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Solution

The fourth proportional to 639,157.58, 882,036.46 and 352,677.44 is: 486,694.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,157.58 : 882,036.46 = 352,677.44 : x
  2. Step 2: Convert to fraction form
    639,157.58/882,036.46 = 352,677.44/x
  3. Step 3: Cross multiply
    639,157.58x = 882,036.46 × 352,677.44
  4. Step 4: Simplify right side
    639,157.58x = 311,074,364,337.30
  5. Step 5: Solve for x
    x = 311,074,364,337.30/639,157.58
  6. Step 6: Final answer
    x = 486,694.32

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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.