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Finding the Fourth Proportional to 557,532.11, 768,966.21 and 375,956.44

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Solution

The fourth proportional to 557,532.11, 768,966.21 and 375,956.44 is: 518,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,532.11 : 768,966.21 = 375,956.44 : x
  2. Step 2: Convert to fraction form
    557,532.11/768,966.21 = 375,956.44/x
  3. Step 3: Cross multiply
    557,532.11x = 768,966.21 × 375,956.44
  4. Step 4: Simplify right side
    557,532.11x = 289,097,796,869.48
  5. Step 5: Solve for x
    x = 289,097,796,869.48/557,532.11
  6. Step 6: Final answer
    x = 518,531.20

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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.