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Finding the Fourth Proportional to 532,168.21, 734,381.72 and 290,452.52

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Solution

The fourth proportional to 532,168.21, 734,381.72 and 290,452.52 is: 400,818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,168.21 : 734,381.72 = 290,452.52 : x
  2. Step 2: Convert to fraction form
    532,168.21/734,381.72 = 290,452.52/x
  3. Step 3: Cross multiply
    532,168.21x = 734,381.72 × 290,452.52
  4. Step 4: Simplify right side
    532,168.21x = 213,303,017,544.03
  5. Step 5: Solve for x
    x = 213,303,017,544.03/532,168.21
  6. Step 6: Final answer
    x = 400,818.79

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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.