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Finding the Fourth Proportional to 406,543.37, 609,704.89 and 169,836.53

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Solution

The fourth proportional to 406,543.37, 609,704.89 and 169,836.53 is: 254,708.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,543.37 : 609,704.89 = 169,836.53 : x
  2. Step 2: Convert to fraction form
    406,543.37/609,704.89 = 169,836.53/x
  3. Step 3: Cross multiply
    406,543.37x = 609,704.89 × 169,836.53
  4. Step 4: Simplify right side
    406,543.37x = 103,550,159,368.52
  5. Step 5: Solve for x
    x = 103,550,159,368.52/406,543.37
  6. Step 6: Final answer
    x = 254,708.77

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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.