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Finding the Fourth Proportional to 562,408.70, 843,687.05 and 207,671.90

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Solution

The fourth proportional to 562,408.70, 843,687.05 and 207,671.90 is: 311,535.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,408.70 : 843,687.05 = 207,671.90 : x
  2. Step 2: Convert to fraction form
    562,408.70/843,687.05 = 207,671.90/x
  3. Step 3: Cross multiply
    562,408.70x = 843,687.05 × 207,671.90
  4. Step 4: Simplify right side
    562,408.70x = 175,210,092,678.90
  5. Step 5: Solve for x
    x = 175,210,092,678.90/562,408.70
  6. Step 6: Final answer
    x = 311,535.17

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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.