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Finding the Fourth Proportional to 562,427.70, 843,715.55 and 207,690.90

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Solution

The fourth proportional to 562,427.70, 843,715.55 and 207,690.90 is: 311,563.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,427.70 : 843,715.55 = 207,690.90 : x
  2. Step 2: Convert to fraction form
    562,427.70/843,715.55 = 207,690.90/x
  3. Step 3: Cross multiply
    562,427.70x = 843,715.55 × 207,690.90
  4. Step 4: Simplify right side
    562,427.70x = 175,232,041,923.50
  5. Step 5: Solve for x
    x = 175,232,041,923.50/562,427.70
  6. Step 6: Final answer
    x = 311,563.68

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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.