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Finding the Fourth Proportional to 374,635.26, 517,047.30 and 211,325.29

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Solution

The fourth proportional to 374,635.26, 517,047.30 and 211,325.29 is: 291,657.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,635.26 : 517,047.30 = 211,325.29 : x
  2. Step 2: Convert to fraction form
    374,635.26/517,047.30 = 211,325.29/x
  3. Step 3: Cross multiply
    374,635.26x = 517,047.30 × 211,325.29
  4. Step 4: Simplify right side
    374,635.26x = 109,265,169,323.60
  5. Step 5: Solve for x
    x = 109,265,169,323.60/374,635.26
  6. Step 6: Final answer
    x = 291,657.46

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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.