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Finding the Fourth Proportional to 373,291.80, 559,937.70 and 223,992.60

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Solution

The fourth proportional to 373,291.80, 559,937.70 and 223,992.60 is: 335,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,291.80 : 559,937.70 = 223,992.60 : x
  2. Step 2: Convert to fraction form
    373,291.80/559,937.70 = 223,992.60/x
  3. Step 3: Cross multiply
    373,291.80x = 559,937.70 × 223,992.60
  4. Step 4: Simplify right side
    373,291.80x = 125,421,901,261.02
  5. Step 5: Solve for x
    x = 125,421,901,261.02/373,291.80
  6. Step 6: Final answer
    x = 335,988.90

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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.