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Finding the Fourth Proportional to 529,279.92, 793,932.84 and 155,314.80

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Solution

The fourth proportional to 529,279.92, 793,932.84 and 155,314.80 is: 232,976.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,279.92 : 793,932.84 = 155,314.80 : x
  2. Step 2: Convert to fraction form
    529,279.92/793,932.84 = 155,314.80/x
  3. Step 3: Cross multiply
    529,279.92x = 793,932.84 × 155,314.80
  4. Step 4: Simplify right side
    529,279.92x = 123,309,520,258.03
  5. Step 5: Solve for x
    x = 123,309,520,258.03/529,279.92
  6. Step 6: Final answer
    x = 232,976.00

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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.