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Finding the Fourth Proportional to 572,622.81, 859,039.78 and 188,393.26

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Solution

The fourth proportional to 572,622.81, 859,039.78 and 188,393.26 is: 282,624.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,622.81 : 859,039.78 = 188,393.26 : x
  2. Step 2: Convert to fraction form
    572,622.81/859,039.78 = 188,393.26/x
  3. Step 3: Cross multiply
    572,622.81x = 859,039.78 × 188,393.26
  4. Step 4: Simplify right side
    572,622.81x = 161,837,300,328.68
  5. Step 5: Solve for x
    x = 161,837,300,328.68/572,622.81
  6. Step 6: Final answer
    x = 282,624.62

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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.