Home / 677,890.26-935,517.87-406,002.42

Finding the Fourth Proportional to 677,890.26, 935,517.87 and 406,002.42

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Solution

The fourth proportional to 677,890.26, 935,517.87 and 406,002.42 is: 560,300.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,890.26 : 935,517.87 = 406,002.42 : x
  2. Step 2: Convert to fraction form
    677,890.26/935,517.87 = 406,002.42/x
  3. Step 3: Cross multiply
    677,890.26x = 935,517.87 × 406,002.42
  4. Step 4: Simplify right side
    677,890.26x = 379,822,519,173.25
  5. Step 5: Solve for x
    x = 379,822,519,173.25/677,890.26
  6. Step 6: Final answer
    x = 560,300.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.