Home / 799,999.60-1,201,381.80-426,751.60

Finding the Fourth Proportional to 799,999.60, 1,201,381.80 and 426,751.60

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Solution

The fourth proportional to 799,999.60, 1,201,381.80 and 426,751.60 is: 640,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,999.60 : 1,201,381.80 = 426,751.60 : x
  2. Step 2: Convert to fraction form
    799,999.60/1,201,381.80 = 426,751.60/x
  3. Step 3: Cross multiply
    799,999.60x = 1,201,381.80 × 426,751.60
  4. Step 4: Simplify right side
    799,999.60x = 512,691,605,360.88
  5. Step 5: Solve for x
    x = 512,691,605,360.88/799,999.60
  6. Step 6: Final answer
    x = 640,864.83

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1.5x scale

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.