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Finding the Fourth Proportional to 567,304.44, 782,878.55 and 312,655.56

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Solution

The fourth proportional to 567,304.44, 782,878.55 and 312,655.56 is: 431,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,304.44 : 782,878.55 = 312,655.56 : x
  2. Step 2: Convert to fraction form
    567,304.44/782,878.55 = 312,655.56/x
  3. Step 3: Cross multiply
    567,304.44x = 782,878.55 × 312,655.56
  4. Step 4: Simplify right side
    567,304.44x = 244,771,329,898.96
  5. Step 5: Solve for x
    x = 244,771,329,898.96/567,304.44
  6. Step 6: Final answer
    x = 431,463.80

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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.