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Finding the Fourth Proportional to 616,407.15, 924,610.73 and 426,269.37

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Solution

The fourth proportional to 616,407.15, 924,610.73 and 426,269.37 is: 639,404.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,407.15 : 924,610.73 = 426,269.37 : x
  2. Step 2: Convert to fraction form
    616,407.15/924,610.73 = 426,269.37/x
  3. Step 3: Cross multiply
    616,407.15x = 924,610.73 × 426,269.37
  4. Step 4: Simplify right side
    616,407.15x = 394,133,231,240.99
  5. Step 5: Solve for x
    x = 394,133,231,240.99/616,407.15
  6. Step 6: Final answer
    x = 639,404.06

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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.