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Finding the Fourth Proportional to 403,374.30, 604,996.65 and 122,826.30

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Solution

The fourth proportional to 403,374.30, 604,996.65 and 122,826.30 is: 184,219.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,374.30 : 604,996.65 = 122,826.30 : x
  2. Step 2: Convert to fraction form
    403,374.30/604,996.65 = 122,826.30/x
  3. Step 3: Cross multiply
    403,374.30x = 604,996.65 × 122,826.30
  4. Step 4: Simplify right side
    403,374.30x = 74,309,500,031.90
  5. Step 5: Solve for x
    x = 74,309,500,031.90/403,374.30
  6. Step 6: Final answer
    x = 184,219.72

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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.