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Finding the Fourth Proportional to 652,930.07, 978,237.41 and 557,188.88

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Solution

The fourth proportional to 652,930.07, 978,237.41 and 557,188.88 is: 834,795.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,930.07 : 978,237.41 = 557,188.88 : x
  2. Step 2: Convert to fraction form
    652,930.07/978,237.41 = 557,188.88/x
  3. Step 3: Cross multiply
    652,930.07x = 978,237.41 × 557,188.88
  4. Step 4: Simplify right side
    652,930.07x = 545,062,999,174.87
  5. Step 5: Solve for x
    x = 545,062,999,174.87/652,930.07
  6. Step 6: Final answer
    x = 834,795.38

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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.