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Finding the Fourth Proportional to 544,488.11, 751,282.93 and 318,089.87

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Solution

The fourth proportional to 544,488.11, 751,282.93 and 318,089.87 is: 438,899.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,488.11 : 751,282.93 = 318,089.87 : x
  2. Step 2: Convert to fraction form
    544,488.11/751,282.93 = 318,089.87/x
  3. Step 3: Cross multiply
    544,488.11x = 751,282.93 × 318,089.87
  4. Step 4: Simplify right side
    544,488.11x = 238,975,489,536.92
  5. Step 5: Solve for x
    x = 238,975,489,536.92/544,488.11
  6. Step 6: Final answer
    x = 438,899.37

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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.