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Finding the Fourth Proportional to 506,676.20, 699,153.54 and 291,825.32

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Solution

The fourth proportional to 506,676.20, 699,153.54 and 291,825.32 is: 402,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,676.20 : 699,153.54 = 291,825.32 : x
  2. Step 2: Convert to fraction form
    506,676.20/699,153.54 = 291,825.32/x
  3. Step 3: Cross multiply
    506,676.20x = 699,153.54 × 291,825.32
  4. Step 4: Simplify right side
    506,676.20x = 204,030,705,539.63
  5. Step 5: Solve for x
    x = 204,030,705,539.63/506,676.20
  6. Step 6: Final answer
    x = 402,684.61

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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.