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Finding the Fourth Proportional to 558,680.69, 770,996.85 and 316,973.45

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Solution

The fourth proportional to 558,680.69, 770,996.85 and 316,973.45 is: 437,433.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,680.69 : 770,996.85 = 316,973.45 : x
  2. Step 2: Convert to fraction form
    558,680.69/770,996.85 = 316,973.45/x
  3. Step 3: Cross multiply
    558,680.69x = 770,996.85 × 316,973.45
  4. Step 4: Simplify right side
    558,680.69x = 244,385,532,222.47
  5. Step 5: Solve for x
    x = 244,385,532,222.47/558,680.69
  6. Step 6: Final answer
    x = 437,433.29

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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.