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Finding the Fourth Proportional to 616,065.09, 923,145.15 and 480,808.48

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Solution

The fourth proportional to 616,065.09, 923,145.15 and 480,808.48 is: 720,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,065.09 : 923,145.15 = 480,808.48 : x
  2. Step 2: Convert to fraction form
    616,065.09/923,145.15 = 480,808.48/x
  3. Step 3: Cross multiply
    616,065.09x = 923,145.15 × 480,808.48
  4. Step 4: Simplify right side
    616,065.09x = 443,856,016,390.87
  5. Step 5: Solve for x
    x = 443,856,016,390.87/616,065.09
  6. Step 6: Final answer
    x = 720,469.35

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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.