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Finding the Fourth Proportional to 535,612.30, 738,808.39 and 374,408.53

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Solution

The fourth proportional to 535,612.30, 738,808.39 and 374,408.53 is: 516,448.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,612.30 : 738,808.39 = 374,408.53 : x
  2. Step 2: Convert to fraction form
    535,612.30/738,808.39 = 374,408.53/x
  3. Step 3: Cross multiply
    535,612.30x = 738,808.39 × 374,408.53
  4. Step 4: Simplify right side
    535,612.30x = 276,616,161,872.56
  5. Step 5: Solve for x
    x = 276,616,161,872.56/535,612.30
  6. Step 6: Final answer
    x = 516,448.49

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1.5x scale

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.