Home / 638,546.72-884,998.19-626,589.29

Finding the Fourth Proportional to 638,546.72, 884,998.19 and 626,589.29

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Solution

The fourth proportional to 638,546.72, 884,998.19 and 626,589.29 is: 868,425.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,546.72 : 884,998.19 = 626,589.29 : x
  2. Step 2: Convert to fraction form
    638,546.72/884,998.19 = 626,589.29/x
  3. Step 3: Cross multiply
    638,546.72x = 884,998.19 × 626,589.29
  4. Step 4: Simplify right side
    638,546.72x = 554,530,391,302.35
  5. Step 5: Solve for x
    x = 554,530,391,302.35/638,546.72
  6. Step 6: Final answer
    x = 868,425.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.