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Finding the Fourth Proportional to 558,175.38, 770,287.50 and 303,532.08

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Solution

The fourth proportional to 558,175.38, 770,287.50 and 303,532.08 is: 418,877.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,175.38 : 770,287.50 = 303,532.08 : x
  2. Step 2: Convert to fraction form
    558,175.38/770,287.50 = 303,532.08/x
  3. Step 3: Cross multiply
    558,175.38x = 770,287.50 × 303,532.08
  4. Step 4: Simplify right side
    558,175.38x = 233,806,967,073
  5. Step 5: Solve for x
    x = 233,806,967,073/558,175.38
  6. Step 6: Final answer
    x = 418,877.25

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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.