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Finding the Fourth Proportional to 803,653.44, 1,109,076.48 and 481,416

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Solution

The fourth proportional to 803,653.44, 1,109,076.48 and 481,416 is: 664,374.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,653.44 : 1,109,076.48 = 481,416 : x
  2. Step 2: Convert to fraction form
    803,653.44/1,109,076.48 = 481,416/x
  3. Step 3: Cross multiply
    803,653.44x = 1,109,076.48 × 481,416
  4. Step 4: Simplify right side
    803,653.44x = 533,927,162,695.68
  5. Step 5: Solve for x
    x = 533,927,162,695.68/803,653.44
  6. Step 6: Final answer
    x = 664,374.89

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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.