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Finding the Fourth Proportional to 357,756.29, 535,748.69 and 262,761.21

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Solution

The fourth proportional to 357,756.29, 535,748.69 and 262,761.21 is: 393,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,756.29 : 535,748.69 = 262,761.21 : x
  2. Step 2: Convert to fraction form
    357,756.29/535,748.69 = 262,761.21/x
  3. Step 3: Cross multiply
    357,756.29x = 535,748.69 × 262,761.21
  4. Step 4: Simplify right side
    357,756.29x = 140,773,974,697.22
  5. Step 5: Solve for x
    x = 140,773,974,697.22/357,756.29
  6. Step 6: Final answer
    x = 393,491.27

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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.