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Finding the Fourth Proportional to 453,770.08, 625,531.20 and 290,408.56

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Solution

The fourth proportional to 453,770.08, 625,531.20 and 290,408.56 is: 400,334.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,770.08 : 625,531.20 = 290,408.56 : x
  2. Step 2: Convert to fraction form
    453,770.08/625,531.20 = 290,408.56/x
  3. Step 3: Cross multiply
    453,770.08x = 625,531.20 × 290,408.56
  4. Step 4: Simplify right side
    453,770.08x = 181,659,615,027.07
  5. Step 5: Solve for x
    x = 181,659,615,027.07/453,770.08
  6. Step 6: Final answer
    x = 400,334.05

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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.