Home / 621,972.11-858,586.34-418,141.25

Finding the Fourth Proportional to 621,972.11, 858,586.34 and 418,141.25

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Solution

The fourth proportional to 621,972.11, 858,586.34 and 418,141.25 is: 577,212.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,972.11 : 858,586.34 = 418,141.25 : x
  2. Step 2: Convert to fraction form
    621,972.11/858,586.34 = 418,141.25/x
  3. Step 3: Cross multiply
    621,972.11x = 858,586.34 × 418,141.25
  4. Step 4: Simplify right side
    621,972.11x = 359,010,365,412.65
  5. Step 5: Solve for x
    x = 359,010,365,412.65/621,972.11
  6. Step 6: Final answer
    x = 577,212.96

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Double scale
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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.