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Finding the Fourth Proportional to 524,658.22, 786,899.30 and 145,617.46

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Solution

The fourth proportional to 524,658.22, 786,899.30 and 145,617.46 is: 218,401.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,658.22 : 786,899.30 = 145,617.46 : x
  2. Step 2: Convert to fraction form
    524,658.22/786,899.30 = 145,617.46/x
  3. Step 3: Cross multiply
    524,658.22x = 786,899.30 × 145,617.46
  4. Step 4: Simplify right side
    524,658.22x = 114,586,277,341.78
  5. Step 5: Solve for x
    x = 114,586,277,341.78/524,658.22
  6. Step 6: Final answer
    x = 218,401.76

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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.