Home / 651,128.40-977,729.40-441,694.80

Finding the Fourth Proportional to 651,128.40, 977,729.40 and 441,694.80

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Solution

The fourth proportional to 651,128.40, 977,729.40 and 441,694.80 is: 663,245.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,128.40 : 977,729.40 = 441,694.80 : x
  2. Step 2: Convert to fraction form
    651,128.40/977,729.40 = 441,694.80/x
  3. Step 3: Cross multiply
    651,128.40x = 977,729.40 × 441,694.80
  4. Step 4: Simplify right side
    651,128.40x = 431,857,991,787.12
  5. Step 5: Solve for x
    x = 431,857,991,787.12/651,128.40
  6. Step 6: Final answer
    x = 663,245.52

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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.