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Finding the Fourth Proportional to 529,764.64, 794,640.24 and 130,410.40

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Solution

The fourth proportional to 529,764.64, 794,640.24 and 130,410.40 is: 195,613.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,764.64 : 794,640.24 = 130,410.40 : x
  2. Step 2: Convert to fraction form
    529,764.64/794,640.24 = 130,410.40/x
  3. Step 3: Cross multiply
    529,764.64x = 794,640.24 × 130,410.40
  4. Step 4: Simplify right side
    529,764.64x = 103,629,351,554.50
  5. Step 5: Solve for x
    x = 103,629,351,554.50/529,764.64
  6. Step 6: Final answer
    x = 195,613.95

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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.