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Finding the Fourth Proportional to 516,963.62, 775,569.36 and 250,412.60

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Solution

The fourth proportional to 516,963.62, 775,569.36 and 250,412.60 is: 375,678.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,963.62 : 775,569.36 = 250,412.60 : x
  2. Step 2: Convert to fraction form
    516,963.62/775,569.36 = 250,412.60/x
  3. Step 3: Cross multiply
    516,963.62x = 775,569.36 × 250,412.60
  4. Step 4: Simplify right side
    516,963.62x = 194,212,339,917.94
  5. Step 5: Solve for x
    x = 194,212,339,917.94/516,963.62
  6. Step 6: Final answer
    x = 375,678.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.