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Finding the Fourth Proportional to 529,065.60, 794,116.80 and 263,126.40

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Solution

The fourth proportional to 529,065.60, 794,116.80 and 263,126.40 is: 394,947.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,065.60 : 794,116.80 = 263,126.40 : x
  2. Step 2: Convert to fraction form
    529,065.60/794,116.80 = 263,126.40/x
  3. Step 3: Cross multiply
    529,065.60x = 794,116.80 × 263,126.40
  4. Step 4: Simplify right side
    529,065.60x = 208,953,094,763.52
  5. Step 5: Solve for x
    x = 208,953,094,763.52/529,065.60
  6. Step 6: Final answer
    x = 394,947.42

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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.