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Finding the Fourth Proportional to 374,741.67, 517,130.61 and 213,648.60

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Solution

The fourth proportional to 374,741.67, 517,130.61 and 213,648.60 is: 294,827.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,741.67 : 517,130.61 = 213,648.60 : x
  2. Step 2: Convert to fraction form
    374,741.67/517,130.61 = 213,648.60/x
  3. Step 3: Cross multiply
    374,741.67x = 517,130.61 × 213,648.60
  4. Step 4: Simplify right side
    374,741.67x = 110,484,230,843.65
  5. Step 5: Solve for x
    x = 110,484,230,843.65/374,741.67
  6. Step 6: Final answer
    x = 294,827.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.