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Finding the Fourth Proportional to 586,760.39, 880,140.60 and 320,375.59

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Solution

The fourth proportional to 586,760.39, 880,140.60 and 320,375.59 is: 480,563.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,760.39 : 880,140.60 = 320,375.59 : x
  2. Step 2: Convert to fraction form
    586,760.39/880,140.60 = 320,375.59/x
  3. Step 3: Cross multiply
    586,760.39x = 880,140.60 × 320,375.59
  4. Step 4: Simplify right side
    586,760.39x = 281,975,561,807.60
  5. Step 5: Solve for x
    x = 281,975,561,807.60/586,760.39
  6. Step 6: Final answer
    x = 480,563.39

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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.