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Finding the Fourth Proportional to 472,185.42, 708,487.28 and 247,492.44

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Solution

The fourth proportional to 472,185.42, 708,487.28 and 247,492.44 is: 371,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,185.42 : 708,487.28 = 247,492.44 : x
  2. Step 2: Convert to fraction form
    472,185.42/708,487.28 = 247,492.44/x
  3. Step 3: Cross multiply
    472,185.42x = 708,487.28 × 247,492.44
  4. Step 4: Simplify right side
    472,185.42x = 175,345,244,398.70
  5. Step 5: Solve for x
    x = 175,345,244,398.70/472,185.42
  6. Step 6: Final answer
    x = 371,348.28

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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.