Home / 621,976.10-858,591.84-418,145.24

Finding the Fourth Proportional to 621,976.10, 858,591.84 and 418,145.24

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Solution

The fourth proportional to 621,976.10, 858,591.84 and 418,145.24 is: 577,218.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,976.10 : 858,591.84 = 418,145.24 : x
  2. Step 2: Convert to fraction form
    621,976.10/858,591.84 = 418,145.24/x
  3. Step 3: Cross multiply
    621,976.10x = 858,591.84 × 418,145.24
  4. Step 4: Simplify right side
    621,976.10x = 359,016,090,998.84
  5. Step 5: Solve for x
    x = 359,016,090,998.84/621,976.10
  6. Step 6: Final answer
    x = 577,218.47

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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.