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Finding the Fourth Proportional to 543,491.70, 818,492.46 and 495,009.96

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Solution

The fourth proportional to 543,491.70, 818,492.46 and 495,009.96 is: 745,479.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,491.70 : 818,492.46 = 495,009.96 : x
  2. Step 2: Convert to fraction form
    543,491.70/818,492.46 = 495,009.96/x
  3. Step 3: Cross multiply
    543,491.70x = 818,492.46 × 495,009.96
  4. Step 4: Simplify right side
    543,491.70x = 405,161,919,884.90
  5. Step 5: Solve for x
    x = 405,161,919,884.90/543,491.70
  6. Step 6: Final answer
    x = 745,479.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.