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Finding the Fourth Proportional to 530,396.43, 731,616.54 and 323,570.32

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Solution

The fourth proportional to 530,396.43, 731,616.54 and 323,570.32 is: 446,325.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,396.43 : 731,616.54 = 323,570.32 : x
  2. Step 2: Convert to fraction form
    530,396.43/731,616.54 = 323,570.32/x
  3. Step 3: Cross multiply
    530,396.43x = 731,616.54 × 323,570.32
  4. Step 4: Simplify right side
    530,396.43x = 236,729,397,965.09
  5. Step 5: Solve for x
    x = 236,729,397,965.09/530,396.43
  6. Step 6: Final answer
    x = 446,325.40

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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.