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Finding the Fourth Proportional to 354,928.60, 532,392.90 and 322,269.40

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Solution

The fourth proportional to 354,928.60, 532,392.90 and 322,269.40 is: 483,404.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,928.60 : 532,392.90 = 322,269.40 : x
  2. Step 2: Convert to fraction form
    354,928.60/532,392.90 = 322,269.40/x
  3. Step 3: Cross multiply
    354,928.60x = 532,392.90 × 322,269.40
  4. Step 4: Simplify right side
    354,928.60x = 171,573,940,447.26
  5. Step 5: Solve for x
    x = 171,573,940,447.26/354,928.60
  6. Step 6: Final answer
    x = 483,404.10

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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.