Home / 628,114.24-941,814.45-428,676.24

Finding the Fourth Proportional to 628,114.24, 941,814.45 and 428,676.24

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Solution

The fourth proportional to 628,114.24, 941,814.45 and 428,676.24 is: 642,770.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,114.24 : 941,814.45 = 428,676.24 : x
  2. Step 2: Convert to fraction form
    628,114.24/941,814.45 = 428,676.24/x
  3. Step 3: Cross multiply
    628,114.24x = 941,814.45 × 428,676.24
  4. Step 4: Simplify right side
    628,114.24x = 403,733,477,203.67
  5. Step 5: Solve for x
    x = 403,733,477,203.67/628,114.24
  6. Step 6: Final answer
    x = 642,770.78

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Double scale
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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.