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Finding the Fourth Proportional to 536,657.28, 740,538.84 and 294,937.20

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Solution

The fourth proportional to 536,657.28, 740,538.84 and 294,937.20 is: 406,986.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,657.28 : 740,538.84 = 294,937.20 : x
  2. Step 2: Convert to fraction form
    536,657.28/740,538.84 = 294,937.20/x
  3. Step 3: Cross multiply
    536,657.28x = 740,538.84 × 294,937.20
  4. Step 4: Simplify right side
    536,657.28x = 218,412,451,960.85
  5. Step 5: Solve for x
    x = 218,412,451,960.85/536,657.28
  6. Step 6: Final answer
    x = 406,986.84

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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.