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Finding the Fourth Proportional to 1,317,546, 1,818,213.48 and 713,934

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Solution

The fourth proportional to 1,317,546, 1,818,213.48 and 713,934 is: 985,228.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,546 : 1,818,213.48 = 713,934 : x
  2. Step 2: Convert to fraction form
    1,317,546/1,818,213.48 = 713,934/x
  3. Step 3: Cross multiply
    1,317,546x = 1,818,213.48 × 713,934
  4. Step 4: Simplify right side
    1,317,546x = 1,298,084,422,630.32
  5. Step 5: Solve for x
    x = 1,298,084,422,630.32/1,317,546
  6. Step 6: Final answer
    x = 985,228.92

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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.