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Finding the Fourth Proportional to 586,626.71, 809,556.32 and 382,808.03

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Solution

The fourth proportional to 586,626.71, 809,556.32 and 382,808.03 is: 528,282.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,626.71 : 809,556.32 = 382,808.03 : x
  2. Step 2: Convert to fraction form
    586,626.71/809,556.32 = 382,808.03/x
  3. Step 3: Cross multiply
    586,626.71x = 809,556.32 × 382,808.03
  4. Step 4: Simplify right side
    586,626.71x = 309,904,656,942.49
  5. Step 5: Solve for x
    x = 309,904,656,942.49/586,626.71
  6. Step 6: Final answer
    x = 528,282.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.