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Finding the Fourth Proportional to 605,873.39, 909,991.04 and 493,636.55

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Solution

The fourth proportional to 605,873.39, 909,991.04 and 493,636.55 is: 741,417.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,873.39 : 909,991.04 = 493,636.55 : x
  2. Step 2: Convert to fraction form
    605,873.39/909,991.04 = 493,636.55/x
  3. Step 3: Cross multiply
    605,873.39x = 909,991.04 × 493,636.55
  4. Step 4: Simplify right side
    605,873.39x = 449,204,830,498.37
  5. Step 5: Solve for x
    x = 449,204,830,498.37/605,873.39
  6. Step 6: Final answer
    x = 741,417.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.