Home / 639,101.39-882,012.60-367,221.74

Finding the Fourth Proportional to 639,101.39, 882,012.60 and 367,221.74

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Solution

The fourth proportional to 639,101.39, 882,012.60 and 367,221.74 is: 506,796.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,101.39 : 882,012.60 = 367,221.74 : x
  2. Step 2: Convert to fraction form
    639,101.39/882,012.60 = 367,221.74/x
  3. Step 3: Cross multiply
    639,101.39x = 882,012.60 × 367,221.74
  4. Step 4: Simplify right side
    639,101.39x = 323,894,197,263.86
  5. Step 5: Solve for x
    x = 323,894,197,263.86/639,101.39
  6. Step 6: Final answer
    x = 506,796.27

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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.