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Finding the Fourth Proportional to 406,054.60, 609,081.90 and 195,713.80

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Solution

The fourth proportional to 406,054.60, 609,081.90 and 195,713.80 is: 293,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,054.60 : 609,081.90 = 195,713.80 : x
  2. Step 2: Convert to fraction form
    406,054.60/609,081.90 = 195,713.80/x
  3. Step 3: Cross multiply
    406,054.60x = 609,081.90 × 195,713.80
  4. Step 4: Simplify right side
    406,054.60x = 119,205,733,160.22
  5. Step 5: Solve for x
    x = 119,205,733,160.22/406,054.60
  6. Step 6: Final answer
    x = 293,570.70

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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.