Home / 639,581.40-882,590.58-367,456.50

Finding the Fourth Proportional to 639,581.40, 882,590.58 and 367,456.50

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Solution

The fourth proportional to 639,581.40, 882,590.58 and 367,456.50 is: 507,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,581.40 : 882,590.58 = 367,456.50 : x
  2. Step 2: Convert to fraction form
    639,581.40/882,590.58 = 367,456.50/x
  3. Step 3: Cross multiply
    639,581.40x = 882,590.58 × 367,456.50
  4. Step 4: Simplify right side
    639,581.40x = 324,313,645,459.77
  5. Step 5: Solve for x
    x = 324,313,645,459.77/639,581.40
  6. Step 6: Final answer
    x = 507,071.73

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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.