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Finding the Fourth Proportional to 476,774.40, 715,564.80 and 196,492.80

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Solution

The fourth proportional to 476,774.40, 715,564.80 and 196,492.80 is: 294,905.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,774.40 : 715,564.80 = 196,492.80 : x
  2. Step 2: Convert to fraction form
    476,774.40/715,564.80 = 196,492.80/x
  3. Step 3: Cross multiply
    476,774.40x = 715,564.80 × 196,492.80
  4. Step 4: Simplify right side
    476,774.40x = 140,603,331,133.44
  5. Step 5: Solve for x
    x = 140,603,331,133.44/476,774.40
  6. Step 6: Final answer
    x = 294,905.37

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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.