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Finding the Fourth Proportional to 403,357.74, 604,958.85 and 122,838.54

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Solution

The fourth proportional to 403,357.74, 604,958.85 and 122,838.54 is: 184,234.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,357.74 : 604,958.85 = 122,838.54 : x
  2. Step 2: Convert to fraction form
    403,357.74/604,958.85 = 122,838.54/x
  3. Step 3: Cross multiply
    403,357.74x = 604,958.85 × 122,838.54
  4. Step 4: Simplify right side
    403,357.74x = 74,312,261,894.08
  5. Step 5: Solve for x
    x = 74,312,261,894.08/403,357.74
  6. Step 6: Final answer
    x = 184,234.13

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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.