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Finding the Fourth Proportional to 403,468.40, 604,943.40 and 166,905.20

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Solution

The fourth proportional to 403,468.40, 604,943.40 and 166,905.20 is: 250,250.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,468.40 : 604,943.40 = 166,905.20 : x
  2. Step 2: Convert to fraction form
    403,468.40/604,943.40 = 166,905.20/x
  3. Step 3: Cross multiply
    403,468.40x = 604,943.40 × 166,905.20
  4. Step 4: Simplify right side
    403,468.40x = 100,968,199,165.68
  5. Step 5: Solve for x
    x = 100,968,199,165.68/403,468.40
  6. Step 6: Final answer
    x = 250,250.58

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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.