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Finding the Fourth Proportional to 406,566.20, 609,606.30 and 248,907.80

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Solution

The fourth proportional to 406,566.20, 609,606.30 and 248,907.80 is: 373,212.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,566.20 : 609,606.30 = 248,907.80 : x
  2. Step 2: Convert to fraction form
    406,566.20/609,606.30 = 248,907.80/x
  3. Step 3: Cross multiply
    406,566.20x = 609,606.30 × 248,907.80
  4. Step 4: Simplify right side
    406,566.20x = 151,735,762,999.14
  5. Step 5: Solve for x
    x = 151,735,762,999.14/406,566.20
  6. Step 6: Final answer
    x = 373,212.93

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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.