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Finding the Fourth Proportional to 357,756.55, 535,749.07 and 262,761.46

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Solution

The fourth proportional to 357,756.55, 535,749.07 and 262,761.46 is: 393,491.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,756.55 : 535,749.07 = 262,761.46 : x
  2. Step 2: Convert to fraction form
    357,756.55/535,749.07 = 262,761.46/x
  3. Step 3: Cross multiply
    357,756.55x = 535,749.07 × 262,761.46
  4. Step 4: Simplify right side
    357,756.55x = 140,774,206,513.04
  5. Step 5: Solve for x
    x = 140,774,206,513.04/357,756.55
  6. Step 6: Final answer
    x = 393,491.63

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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.