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Finding the Fourth Proportional to 455,539.71, 683,327.93 and 171,200.55

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Solution

The fourth proportional to 455,539.71, 683,327.93 and 171,200.55 is: 256,807.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,539.71 : 683,327.93 = 171,200.55 : x
  2. Step 2: Convert to fraction form
    455,539.71/683,327.93 = 171,200.55/x
  3. Step 3: Cross multiply
    455,539.71x = 683,327.93 × 171,200.55
  4. Step 4: Simplify right side
    455,539.71x = 116,986,116,590.36
  5. Step 5: Solve for x
    x = 116,986,116,590.36/455,539.71
  6. Step 6: Final answer
    x = 256,807.73

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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.