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Finding the Fourth Proportional to 547,568.93, 755,637.03 and 305,855.07

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Solution

The fourth proportional to 547,568.93, 755,637.03 and 305,855.07 is: 422,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,568.93 : 755,637.03 = 305,855.07 : x
  2. Step 2: Convert to fraction form
    547,568.93/755,637.03 = 305,855.07/x
  3. Step 3: Cross multiply
    547,568.93x = 755,637.03 × 305,855.07
  4. Step 4: Simplify right side
    547,568.93x = 231,115,416,705.24
  5. Step 5: Solve for x
    x = 231,115,416,705.24/547,568.93
  6. Step 6: Final answer
    x = 422,075.48

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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.