Home / 629,183.12-868,462.44-428,095.76

Finding the Fourth Proportional to 629,183.12, 868,462.44 and 428,095.76

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Solution

The fourth proportional to 629,183.12, 868,462.44 and 428,095.76 is: 590,901.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,183.12 : 868,462.44 = 428,095.76 : x
  2. Step 2: Convert to fraction form
    629,183.12/868,462.44 = 428,095.76/x
  3. Step 3: Cross multiply
    629,183.12x = 868,462.44 × 428,095.76
  4. Step 4: Simplify right side
    629,183.12x = 371,785,088,283.25
  5. Step 5: Solve for x
    x = 371,785,088,283.25/629,183.12
  6. Step 6: Final answer
    x = 590,901.24

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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.