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Finding the Fourth Proportional to 331,052.40, 496,578.60 and 109,436.40

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Solution

The fourth proportional to 331,052.40, 496,578.60 and 109,436.40 is: 164,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,052.40 : 496,578.60 = 109,436.40 : x
  2. Step 2: Convert to fraction form
    331,052.40/496,578.60 = 109,436.40/x
  3. Step 3: Cross multiply
    331,052.40x = 496,578.60 × 109,436.40
  4. Step 4: Simplify right side
    331,052.40x = 54,343,774,301.04
  5. Step 5: Solve for x
    x = 54,343,774,301.04/331,052.40
  6. Step 6: Final answer
    x = 164,154.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.