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Finding the Fourth Proportional to 357,755.80, 535,747.94 and 262,760.71

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Solution

The fourth proportional to 357,755.80, 535,747.94 and 262,760.71 is: 393,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,755.80 : 535,747.94 = 262,760.71 : x
  2. Step 2: Convert to fraction form
    357,755.80/535,747.94 = 262,760.71/x
  3. Step 3: Cross multiply
    357,755.80x = 535,747.94 × 262,760.71
  4. Step 4: Simplify right side
    357,755.80x = 140,773,509,752.34
  5. Step 5: Solve for x
    x = 140,773,509,752.34/357,755.80
  6. Step 6: Final answer
    x = 393,490.50

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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.