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Finding the Fourth Proportional to 576,548.53, 864,825.88 and 378,125.45

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Solution

The fourth proportional to 576,548.53, 864,825.88 and 378,125.45 is: 567,190.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,548.53 : 864,825.88 = 378,125.45 : x
  2. Step 2: Convert to fraction form
    576,548.53/864,825.88 = 378,125.45/x
  3. Step 3: Cross multiply
    576,548.53x = 864,825.88 × 378,125.45
  4. Step 4: Simplify right side
    576,548.53x = 327,012,673,729.29
  5. Step 5: Solve for x
    x = 327,012,673,729.29/576,548.53
  6. Step 6: Final answer
    x = 567,190.19

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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.