Home / 644,047.20-966,243.60-574,408.80

Finding the Fourth Proportional to 644,047.20, 966,243.60 and 574,408.80

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Solution

The fourth proportional to 644,047.20, 966,243.60 and 574,408.80 is: 861,767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,047.20 : 966,243.60 = 574,408.80 : x
  2. Step 2: Convert to fraction form
    644,047.20/966,243.60 = 574,408.80/x
  3. Step 3: Cross multiply
    644,047.20x = 966,243.60 × 574,408.80
  4. Step 4: Simplify right side
    644,047.20x = 555,018,826,783.68
  5. Step 5: Solve for x
    x = 555,018,826,783.68/644,047.20
  6. Step 6: Final answer
    x = 861,767.32

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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.