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Finding the Fourth Proportional to 567,861.16, 851,792.22 and 318,718.12

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Solution

The fourth proportional to 567,861.16, 851,792.22 and 318,718.12 is: 478,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,861.16 : 851,792.22 = 318,718.12 : x
  2. Step 2: Convert to fraction form
    567,861.16/851,792.22 = 318,718.12/x
  3. Step 3: Cross multiply
    567,861.16x = 851,792.22 × 318,718.12
  4. Step 4: Simplify right side
    567,861.16x = 271,481,614,989.03
  5. Step 5: Solve for x
    x = 271,481,614,989.03/567,861.16
  6. Step 6: Final answer
    x = 478,077.45

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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.