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Finding the Fourth Proportional to 508,996.35, 702,338.77 and 291,170.39

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Solution

The fourth proportional to 508,996.35, 702,338.77 and 291,170.39 is: 401,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,996.35 : 702,338.77 = 291,170.39 : x
  2. Step 2: Convert to fraction form
    508,996.35/702,338.77 = 291,170.39/x
  3. Step 3: Cross multiply
    508,996.35x = 702,338.77 × 291,170.39
  4. Step 4: Simplify right side
    508,996.35x = 204,500,252,845.09
  5. Step 5: Solve for x
    x = 204,500,252,845.09/508,996.35
  6. Step 6: Final answer
    x = 401,771.55

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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.