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Finding the Fourth Proportional to 557,708.03, 769,634.99 and 316,036.83

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Solution

The fourth proportional to 557,708.03, 769,634.99 and 316,036.83 is: 436,129.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,708.03 : 769,634.99 = 316,036.83 : x
  2. Step 2: Convert to fraction form
    557,708.03/769,634.99 = 316,036.83/x
  3. Step 3: Cross multiply
    557,708.03x = 769,634.99 × 316,036.83
  4. Step 4: Simplify right side
    557,708.03x = 243,233,002,496.68
  5. Step 5: Solve for x
    x = 243,233,002,496.68/557,708.03
  6. Step 6: Final answer
    x = 436,129.64

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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.