Home / 858,844.40-1,288,266.60-620,898.80

Finding the Fourth Proportional to 858,844.40, 1,288,266.60 and 620,898.80

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Solution

The fourth proportional to 858,844.40, 1,288,266.60 and 620,898.80 is: 931,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,844.40 : 1,288,266.60 = 620,898.80 : x
  2. Step 2: Convert to fraction form
    858,844.40/1,288,266.60 = 620,898.80/x
  3. Step 3: Cross multiply
    858,844.40x = 1,288,266.60 × 620,898.80
  4. Step 4: Simplify right side
    858,844.40x = 799,883,186,020.08
  5. Step 5: Solve for x
    x = 799,883,186,020.08/858,844.40
  6. Step 6: Final answer
    x = 931,348.20

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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.