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Finding the Fourth Proportional to 659,812.23, 990,215.82 and 482,775.93

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Solution

The fourth proportional to 659,812.23, 990,215.82 and 482,775.93 is: 724,527.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,812.23 : 990,215.82 = 482,775.93 : x
  2. Step 2: Convert to fraction form
    659,812.23/990,215.82 = 482,775.93/x
  3. Step 3: Cross multiply
    659,812.23x = 990,215.82 × 482,775.93
  4. Step 4: Simplify right side
    659,812.23x = 478,052,363,401.21
  5. Step 5: Solve for x
    x = 478,052,363,401.21/659,812.23
  6. Step 6: Final answer
    x = 724,527.89

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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.