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Finding the Fourth Proportional to 372,659.82, 514,244.60 and 211,518.16

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Solution

The fourth proportional to 372,659.82, 514,244.60 and 211,518.16 is: 291,880.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,659.82 : 514,244.60 = 211,518.16 : x
  2. Step 2: Convert to fraction form
    372,659.82/514,244.60 = 211,518.16/x
  3. Step 3: Cross multiply
    372,659.82x = 514,244.60 × 211,518.16
  4. Step 4: Simplify right side
    372,659.82x = 108,772,071,581.94
  5. Step 5: Solve for x
    x = 108,772,071,581.94/372,659.82
  6. Step 6: Final answer
    x = 291,880.33

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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.