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Finding the Fourth Proportional to 374,367.76, 516,652.44 and 211,064.56

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Solution

The fourth proportional to 374,367.76, 516,652.44 and 211,064.56 is: 291,283.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,367.76 : 516,652.44 = 211,064.56 : x
  2. Step 2: Convert to fraction form
    374,367.76/516,652.44 = 211,064.56/x
  3. Step 3: Cross multiply
    374,367.76x = 516,652.44 × 211,064.56
  4. Step 4: Simplify right side
    374,367.76x = 109,047,019,921.53
  5. Step 5: Solve for x
    x = 109,047,019,921.53/374,367.76
  6. Step 6: Final answer
    x = 291,283.15

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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.