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Finding the Fourth Proportional to 374,349.76, 516,627.60 and 211,046.56

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Solution

The fourth proportional to 374,349.76, 516,627.60 and 211,046.56 is: 291,258.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,349.76 : 516,627.60 = 211,046.56 : x
  2. Step 2: Convert to fraction form
    374,349.76/516,627.60 = 211,046.56/x
  3. Step 3: Cross multiply
    374,349.76x = 516,627.60 × 211,046.56
  4. Step 4: Simplify right side
    374,349.76x = 109,032,477,781.06
  5. Step 5: Solve for x
    x = 109,032,477,781.06/374,349.76
  6. Step 6: Final answer
    x = 291,258.31

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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.