Home / 939,863.70-1,409,795.55-620,999.10

Finding the Fourth Proportional to 939,863.70, 1,409,795.55 and 620,999.10

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Solution

The fourth proportional to 939,863.70, 1,409,795.55 and 620,999.10 is: 931,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,863.70 : 1,409,795.55 = 620,999.10 : x
  2. Step 2: Convert to fraction form
    939,863.70/1,409,795.55 = 620,999.10/x
  3. Step 3: Cross multiply
    939,863.70x = 1,409,795.55 × 620,999.10
  4. Step 4: Simplify right side
    939,863.70x = 875,481,767,734.01
  5. Step 5: Solve for x
    x = 875,481,767,734.01/939,863.70
  6. Step 6: Final answer
    x = 931,498.65

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.