Home / 406,726.38-609,685.79-193,118.85

Finding the Fourth Proportional to 406,726.38, 609,685.79 and 193,118.85

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Solution

The fourth proportional to 406,726.38, 609,685.79 and 193,118.85 is: 289,486.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,726.38 : 609,685.79 = 193,118.85 : x
  2. Step 2: Convert to fraction form
    406,726.38/609,685.79 = 193,118.85/x
  3. Step 3: Cross multiply
    406,726.38x = 609,685.79 × 193,118.85
  4. Step 4: Simplify right side
    406,726.38x = 117,741,817,660.55
  5. Step 5: Solve for x
    x = 117,741,817,660.55/406,726.38
  6. Step 6: Final answer
    x = 289,486.55

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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.