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Finding the Fourth Proportional to 558,366.73, 770,682.95 and 316,790.71

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Solution

The fourth proportional to 558,366.73, 770,682.95 and 316,790.71 is: 437,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,366.73 : 770,682.95 = 316,790.71 : x
  2. Step 2: Convert to fraction form
    558,366.73/770,682.95 = 316,790.71/x
  3. Step 3: Cross multiply
    558,366.73x = 770,682.95 × 316,790.71
  4. Step 4: Simplify right side
    558,366.73x = 244,145,198,915.40
  5. Step 5: Solve for x
    x = 244,145,198,915.40/558,366.73
  6. Step 6: Final answer
    x = 437,248.83

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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.