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Finding the Fourth Proportional to 958,471, 1,322,690 and 534,535

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Solution

The fourth proportional to 958,471, 1,322,690 and 534,535 is: 737,658.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,471 : 1,322,690 = 534,535 : x
  2. Step 2: Convert to fraction form
    958,471/1,322,690 = 534,535/x
  3. Step 3: Cross multiply
    958,471x = 1,322,690 × 534,535
  4. Step 4: Simplify right side
    958,471x = 707,024,099,150
  5. Step 5: Solve for x
    x = 707,024,099,150/958,471
  6. Step 6: Final answer
    x = 737,658.31

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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.