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Finding the Fourth Proportional to 562,499.32, 843,861.84 and 207,515.20

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Solution

The fourth proportional to 562,499.32, 843,861.84 and 207,515.20 is: 311,314.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,499.32 : 843,861.84 = 207,515.20 : x
  2. Step 2: Convert to fraction form
    562,499.32/843,861.84 = 207,515.20/x
  3. Step 3: Cross multiply
    562,499.32x = 843,861.84 × 207,515.20
  4. Step 4: Simplify right side
    562,499.32x = 175,114,158,499.97
  5. Step 5: Solve for x
    x = 175,114,158,499.97/562,499.32
  6. Step 6: Final answer
    x = 311,314.44

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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.