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Finding the Fourth Proportional to 1,317,548, 1,818,216.24 and 713,936

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Solution

The fourth proportional to 1,317,548, 1,818,216.24 and 713,936 is: 985,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,548 : 1,818,216.24 = 713,936 : x
  2. Step 2: Convert to fraction form
    1,317,548/1,818,216.24 = 713,936/x
  3. Step 3: Cross multiply
    1,317,548x = 1,818,216.24 × 713,936
  4. Step 4: Simplify right side
    1,317,548x = 1,298,090,029,520.64
  5. Step 5: Solve for x
    x = 1,298,090,029,520.64/1,317,548
  6. Step 6: Final answer
    x = 985,231.68

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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.