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Finding the Fourth Proportional to 673,279.89, 929,264.53 and 411,679.92

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Solution

The fourth proportional to 673,279.89, 929,264.53 and 411,679.92 is: 568,202.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,279.89 : 929,264.53 = 411,679.92 : x
  2. Step 2: Convert to fraction form
    673,279.89/929,264.53 = 411,679.92/x
  3. Step 3: Cross multiply
    673,279.89x = 929,264.53 × 411,679.92
  4. Step 4: Simplify right side
    673,279.89x = 382,559,547,369.24
  5. Step 5: Solve for x
    x = 382,559,547,369.24/673,279.89
  6. Step 6: Final answer
    x = 568,202.84

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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.