Home / 621,974.34-858,589.43-418,143.48

Finding the Fourth Proportional to 621,974.34, 858,589.43 and 418,143.48

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Solution

The fourth proportional to 621,974.34, 858,589.43 and 418,143.48 is: 577,216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,974.34 : 858,589.43 = 418,143.48 : x
  2. Step 2: Convert to fraction form
    621,974.34/858,589.43 = 418,143.48/x
  3. Step 3: Cross multiply
    621,974.34x = 858,589.43 × 418,143.48
  4. Step 4: Simplify right side
    621,974.34x = 359,013,570,060.70
  5. Step 5: Solve for x
    x = 359,013,570,060.70/621,974.34
  6. Step 6: Final answer
    x = 577,216.05

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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.