Home / 677,905.26-935,538.57-406,017.42

Finding the Fourth Proportional to 677,905.26, 935,538.57 and 406,017.42

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Solution

The fourth proportional to 677,905.26, 935,538.57 and 406,017.42 is: 560,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,905.26 : 935,538.57 = 406,017.42 : x
  2. Step 2: Convert to fraction form
    677,905.26/935,538.57 = 406,017.42/x
  3. Step 3: Cross multiply
    677,905.26x = 935,538.57 × 406,017.42
  4. Step 4: Simplify right side
    677,905.26x = 379,844,956,501.89
  5. Step 5: Solve for x
    x = 379,844,956,501.89/677,905.26
  6. Step 6: Final answer
    x = 560,321.59

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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.