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Finding the Fourth Proportional to 403,328.56, 604,327.20 and 234,374.64

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Solution

The fourth proportional to 403,328.56, 604,327.20 and 234,374.64 is: 351,175.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,328.56 : 604,327.20 = 234,374.64 : x
  2. Step 2: Convert to fraction form
    403,328.56/604,327.20 = 234,374.64/x
  3. Step 3: Cross multiply
    403,328.56x = 604,327.20 × 234,374.64
  4. Step 4: Simplify right side
    403,328.56x = 141,638,969,942.21
  5. Step 5: Solve for x
    x = 141,638,969,942.21/403,328.56
  6. Step 6: Final answer
    x = 351,175.16

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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.