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Finding the Fourth Proportional to 406,531.08, 609,471 and 193,191.93

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Solution

The fourth proportional to 406,531.08, 609,471 and 193,191.93 is: 289,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,531.08 : 609,471 = 193,191.93 : x
  2. Step 2: Convert to fraction form
    406,531.08/609,471 = 193,191.93/x
  3. Step 3: Cross multiply
    406,531.08x = 609,471 × 193,191.93
  4. Step 4: Simplify right side
    406,531.08x = 117,744,878,769.03
  5. Step 5: Solve for x
    x = 117,744,878,769.03/406,531.08
  6. Step 6: Final answer
    x = 289,633.15

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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.