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Finding the Fourth Proportional to 558,173.34, 770,255.73 and 316,472.13

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Solution

The fourth proportional to 558,173.34, 770,255.73 and 316,472.13 is: 436,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,173.34 : 770,255.73 = 316,472.13 : x
  2. Step 2: Convert to fraction form
    558,173.34/770,255.73 = 316,472.13/x
  3. Step 3: Cross multiply
    558,173.34x = 770,255.73 × 316,472.13
  4. Step 4: Simplify right side
    558,173.34x = 243,764,471,517.81
  5. Step 5: Solve for x
    x = 243,764,471,517.81/558,173.34
  6. Step 6: Final answer
    x = 436,718.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.