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Finding the Fourth Proportional to 616,939.14, 925,064.85 and 190,353.85

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Solution

The fourth proportional to 616,939.14, 925,064.85 and 190,353.85 is: 285,424.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,939.14 : 925,064.85 = 190,353.85 : x
  2. Step 2: Convert to fraction form
    616,939.14/925,064.85 = 190,353.85/x
  3. Step 3: Cross multiply
    616,939.14x = 925,064.85 × 190,353.85
  4. Step 4: Simplify right side
    616,939.14x = 176,089,655,697.17
  5. Step 5: Solve for x
    x = 176,089,655,697.17/616,939.14
  6. Step 6: Final answer
    x = 285,424.68

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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.