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Finding the Fourth Proportional to 442,805.94, 611,064.54 and 251,814.96

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Solution

The fourth proportional to 442,805.94, 611,064.54 and 251,814.96 is: 347,500.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,805.94 : 611,064.54 = 251,814.96 : x
  2. Step 2: Convert to fraction form
    442,805.94/611,064.54 = 251,814.96/x
  3. Step 3: Cross multiply
    442,805.94x = 611,064.54 × 251,814.96
  4. Step 4: Simplify right side
    442,805.94x = 153,875,192,697.52
  5. Step 5: Solve for x
    x = 153,875,192,697.52/442,805.94
  6. Step 6: Final answer
    x = 347,500.29

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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.