Home / 621,977.10-858,593.22-418,146.24

Finding the Fourth Proportional to 621,977.10, 858,593.22 and 418,146.24

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Solution

The fourth proportional to 621,977.10, 858,593.22 and 418,146.24 is: 577,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,977.10 : 858,593.22 = 418,146.24 : x
  2. Step 2: Convert to fraction form
    621,977.10/858,593.22 = 418,146.24/x
  3. Step 3: Cross multiply
    621,977.10x = 858,593.22 × 418,146.24
  4. Step 4: Simplify right side
    621,977.10x = 359,017,526,632.49
  5. Step 5: Solve for x
    x = 359,017,526,632.49/621,977.10
  6. Step 6: Final answer
    x = 577,219.85

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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.