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Finding the Fourth Proportional to 406,563.70, 609,602.55 and 248,905.30

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Solution

The fourth proportional to 406,563.70, 609,602.55 and 248,905.30 is: 373,209.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,563.70 : 609,602.55 = 248,905.30 : x
  2. Step 2: Convert to fraction form
    406,563.70/609,602.55 = 248,905.30/x
  3. Step 3: Cross multiply
    406,563.70x = 609,602.55 × 248,905.30
  4. Step 4: Simplify right side
    406,563.70x = 151,733,305,588.52
  5. Step 5: Solve for x
    x = 151,733,305,588.52/406,563.70
  6. Step 6: Final answer
    x = 373,209.18

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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.