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Finding the Fourth Proportional to 629,859.90, 947,122.65 and 527,216.70

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Solution

The fourth proportional to 629,859.90, 947,122.65 and 527,216.70 is: 792,777.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,859.90 : 947,122.65 = 527,216.70 : x
  2. Step 2: Convert to fraction form
    629,859.90/947,122.65 = 527,216.70/x
  3. Step 3: Cross multiply
    629,859.90x = 947,122.65 × 527,216.70
  4. Step 4: Simplify right side
    629,859.90x = 499,338,878,028.26
  5. Step 5: Solve for x
    x = 499,338,878,028.26/629,859.90
  6. Step 6: Final answer
    x = 792,777.69

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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.