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Finding the Fourth Proportional to 523,166.70, 722,189.40 and 353,630.46

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Solution

The fourth proportional to 523,166.70, 722,189.40 and 353,630.46 is: 488,158.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,166.70 : 722,189.40 = 353,630.46 : x
  2. Step 2: Convert to fraction form
    523,166.70/722,189.40 = 353,630.46/x
  3. Step 3: Cross multiply
    523,166.70x = 722,189.40 × 353,630.46
  4. Step 4: Simplify right side
    523,166.70x = 255,388,169,729.12
  5. Step 5: Solve for x
    x = 255,388,169,729.12/523,166.70
  6. Step 6: Final answer
    x = 488,158.31

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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.