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Finding the Fourth Proportional to 616,063.09, 923,142.15 and 480,806.48

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Solution

The fourth proportional to 616,063.09, 923,142.15 and 480,806.48 is: 720,466.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,063.09 : 923,142.15 = 480,806.48 : x
  2. Step 2: Convert to fraction form
    616,063.09/923,142.15 = 480,806.48/x
  3. Step 3: Cross multiply
    616,063.09x = 923,142.15 × 480,806.48
  4. Step 4: Simplify right side
    616,063.09x = 443,852,732,017.39
  5. Step 5: Solve for x
    x = 443,852,732,017.39/616,063.09
  6. Step 6: Final answer
    x = 720,466.36

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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.