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Finding the Fourth Proportional to 406,430.70, 609,991.65 and 182,136.30

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Solution

The fourth proportional to 406,430.70, 609,991.65 and 182,136.30 is: 273,359.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,430.70 : 609,991.65 = 182,136.30 : x
  2. Step 2: Convert to fraction form
    406,430.70/609,991.65 = 182,136.30/x
  3. Step 3: Cross multiply
    406,430.70x = 609,991.65 × 182,136.30
  4. Step 4: Simplify right side
    406,430.70x = 111,101,622,161.90
  5. Step 5: Solve for x
    x = 111,101,622,161.90/406,430.70
  6. Step 6: Final answer
    x = 273,359.33

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1.5x scale

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.