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Finding the Fourth Proportional to 577,085.62, 865,643.21 and 273,408.69

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Solution

The fourth proportional to 577,085.62, 865,643.21 and 273,408.69 is: 410,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,085.62 : 865,643.21 = 273,408.69 : x
  2. Step 2: Convert to fraction form
    577,085.62/865,643.21 = 273,408.69/x
  3. Step 3: Cross multiply
    577,085.62x = 865,643.21 × 273,408.69
  4. Step 4: Simplify right side
    577,085.62x = 236,674,372,465.57
  5. Step 5: Solve for x
    x = 236,674,372,465.57/577,085.62
  6. Step 6: Final answer
    x = 410,120.03

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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.