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Finding the Fourth Proportional to 371,014.20, 555,865.20 and 314,589.60

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Solution

The fourth proportional to 371,014.20, 555,865.20 and 314,589.60 is: 471,328.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,014.20 : 555,865.20 = 314,589.60 : x
  2. Step 2: Convert to fraction form
    371,014.20/555,865.20 = 314,589.60/x
  3. Step 3: Cross multiply
    371,014.20x = 555,865.20 × 314,589.60
  4. Step 4: Simplify right side
    371,014.20x = 174,869,410,921.92
  5. Step 5: Solve for x
    x = 174,869,410,921.92/371,014.20
  6. Step 6: Final answer
    x = 471,328.08

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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.