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Finding the Fourth Proportional to 616,501.89, 850,778.51 and 361,857.33

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Solution

The fourth proportional to 616,501.89, 850,778.51 and 361,857.33 is: 499,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,501.89 : 850,778.51 = 361,857.33 : x
  2. Step 2: Convert to fraction form
    616,501.89/850,778.51 = 361,857.33/x
  3. Step 3: Cross multiply
    616,501.89x = 850,778.51 × 361,857.33
  4. Step 4: Simplify right side
    616,501.89x = 307,860,438,240.69
  5. Step 5: Solve for x
    x = 307,860,438,240.69/616,501.89
  6. Step 6: Final answer
    x = 499,366.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.