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Finding the Fourth Proportional to 617,149.37, 851,293.73 and 407,598.55

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Solution

The fourth proportional to 617,149.37, 851,293.73 and 407,598.55 is: 562,240.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,149.37 : 851,293.73 = 407,598.55 : x
  2. Step 2: Convert to fraction form
    617,149.37/851,293.73 = 407,598.55/x
  3. Step 3: Cross multiply
    617,149.37x = 851,293.73 × 407,598.55
  4. Step 4: Simplify right side
    617,149.37x = 346,986,089,462.59
  5. Step 5: Solve for x
    x = 346,986,089,462.59/617,149.37
  6. Step 6: Final answer
    x = 562,240.04

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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.