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Finding the Fourth Proportional to 694,751.52, 958,799.34 and 388,821.66

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Solution

The fourth proportional to 694,751.52, 958,799.34 and 388,821.66 is: 536,597.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,751.52 : 958,799.34 = 388,821.66 : x
  2. Step 2: Convert to fraction form
    694,751.52/958,799.34 = 388,821.66/x
  3. Step 3: Cross multiply
    694,751.52x = 958,799.34 × 388,821.66
  4. Step 4: Simplify right side
    694,751.52x = 372,801,950,985.70
  5. Step 5: Solve for x
    x = 372,801,950,985.70/694,751.52
  6. Step 6: Final answer
    x = 536,597.53

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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.