Home / 621,971.44-858,585.42-418,140.58

Finding the Fourth Proportional to 621,971.44, 858,585.42 and 418,140.58

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Solution

The fourth proportional to 621,971.44, 858,585.42 and 418,140.58 is: 577,212.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,971.44 : 858,585.42 = 418,140.58 : x
  2. Step 2: Convert to fraction form
    621,971.44/858,585.42 = 418,140.58/x
  3. Step 3: Cross multiply
    621,971.44x = 858,585.42 × 418,140.58
  4. Step 4: Simplify right side
    621,971.44x = 359,009,404,961.73
  5. Step 5: Solve for x
    x = 359,009,404,961.73/621,971.44
  6. Step 6: Final answer
    x = 577,212.04

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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.