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Finding the Fourth Proportional to 562,409.70, 843,688.55 and 207,672.90

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Solution

The fourth proportional to 562,409.70, 843,688.55 and 207,672.90 is: 311,536.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,409.70 : 843,688.55 = 207,672.90 : x
  2. Step 2: Convert to fraction form
    562,409.70/843,688.55 = 207,672.90/x
  3. Step 3: Cross multiply
    562,409.70x = 843,688.55 × 207,672.90
  4. Step 4: Simplify right side
    562,409.70x = 175,211,247,875.30
  5. Step 5: Solve for x
    x = 175,211,247,875.30/562,409.70
  6. Step 6: Final answer
    x = 311,536.67

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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.