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Finding the Fourth Proportional to 534,740.75, 737,942.24 and 319,889.87

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Solution

The fourth proportional to 534,740.75, 737,942.24 and 319,889.87 is: 441,448.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,740.75 : 737,942.24 = 319,889.87 : x
  2. Step 2: Convert to fraction form
    534,740.75/737,942.24 = 319,889.87/x
  3. Step 3: Cross multiply
    534,740.75x = 737,942.24 × 319,889.87
  4. Step 4: Simplify right side
    534,740.75x = 236,060,245,621.66
  5. Step 5: Solve for x
    x = 236,060,245,621.66/534,740.75
  6. Step 6: Final answer
    x = 441,448.02

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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.