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Finding the Fourth Proportional to 659,813.23, 990,217.32 and 482,776.93

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Solution

The fourth proportional to 659,813.23, 990,217.32 and 482,776.93 is: 724,529.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,813.23 : 990,217.32 = 482,776.93 : x
  2. Step 2: Convert to fraction form
    659,813.23/990,217.32 = 482,776.93/x
  3. Step 3: Cross multiply
    659,813.23x = 990,217.32 × 482,776.93
  4. Step 4: Simplify right side
    659,813.23x = 478,054,077,782.43
  5. Step 5: Solve for x
    x = 478,054,077,782.43/659,813.23
  6. Step 6: Final answer
    x = 724,529.39

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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.