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Finding the Fourth Proportional to 661,248.54, 993,035.70 and 651,782.34

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Solution

The fourth proportional to 661,248.54, 993,035.70 and 651,782.34 is: 978,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,248.54 : 993,035.70 = 651,782.34 : x
  2. Step 2: Convert to fraction form
    661,248.54/993,035.70 = 651,782.34/x
  3. Step 3: Cross multiply
    661,248.54x = 993,035.70 × 651,782.34
  4. Step 4: Simplify right side
    661,248.54x = 647,243,132,249.54
  5. Step 5: Solve for x
    x = 647,243,132,249.54/661,248.54
  6. Step 6: Final answer
    x = 978,819.75

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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.