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Finding the Fourth Proportional to 580,148.72, 800,562.66 and 322,040.60

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Solution

The fourth proportional to 580,148.72, 800,562.66 and 322,040.60 is: 444,392.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,148.72 : 800,562.66 = 322,040.60 : x
  2. Step 2: Convert to fraction form
    580,148.72/800,562.66 = 322,040.60/x
  3. Step 3: Cross multiply
    580,148.72x = 800,562.66 × 322,040.60
  4. Step 4: Simplify right side
    580,148.72x = 257,813,679,364.00
  5. Step 5: Solve for x
    x = 257,813,679,364.00/580,148.72
  6. Step 6: Final answer
    x = 444,392.40

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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.