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Finding the Fourth Proportional to 621,735.56, 932,603.34 and 411,324.38

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Solution

The fourth proportional to 621,735.56, 932,603.34 and 411,324.38 is: 616,986.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,735.56 : 932,603.34 = 411,324.38 : x
  2. Step 2: Convert to fraction form
    621,735.56/932,603.34 = 411,324.38/x
  3. Step 3: Cross multiply
    621,735.56x = 932,603.34 × 411,324.38
  4. Step 4: Simplify right side
    621,735.56x = 383,602,490,611.43
  5. Step 5: Solve for x
    x = 383,602,490,611.43/621,735.56
  6. Step 6: Final answer
    x = 616,986.57

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1.5x scale

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.