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Finding the Fourth Proportional to 524,404.65, 786,604.73 and 145,324.29

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Solution

The fourth proportional to 524,404.65, 786,604.73 and 145,324.29 is: 217,985.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,404.65 : 786,604.73 = 145,324.29 : x
  2. Step 2: Convert to fraction form
    524,404.65/786,604.73 = 145,324.29/x
  3. Step 3: Cross multiply
    524,404.65x = 786,604.73 × 145,324.29
  4. Step 4: Simplify right side
    524,404.65x = 114,312,773,171.27
  5. Step 5: Solve for x
    x = 114,312,773,171.27/524,404.65
  6. Step 6: Final answer
    x = 217,985.81

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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.