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Finding the Fourth Proportional to 673,674.16, 929,668.44 and 371,866

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Solution

The fourth proportional to 673,674.16, 929,668.44 and 371,866 is: 513,174.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,674.16 : 929,668.44 = 371,866 : x
  2. Step 2: Convert to fraction form
    673,674.16/929,668.44 = 371,866/x
  3. Step 3: Cross multiply
    673,674.16x = 929,668.44 × 371,866
  4. Step 4: Simplify right side
    673,674.16x = 345,712,084,109.04
  5. Step 5: Solve for x
    x = 345,712,084,109.04/673,674.16
  6. Step 6: Final answer
    x = 513,174.03

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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.