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Finding the Fourth Proportional to 768,581.34, 1,058,294.34 and 696,492.42

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Solution

The fourth proportional to 768,581.34, 1,058,294.34 and 696,492.42 is: 959,031.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,581.34 : 1,058,294.34 = 696,492.42 : x
  2. Step 2: Convert to fraction form
    768,581.34/1,058,294.34 = 696,492.42/x
  3. Step 3: Cross multiply
    768,581.34x = 1,058,294.34 × 696,492.42
  4. Step 4: Simplify right side
    768,581.34x = 737,093,985,938.90
  5. Step 5: Solve for x
    x = 737,093,985,938.90/768,581.34
  6. Step 6: Final answer
    x = 959,031.85

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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.