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Finding the Fourth Proportional to 482,157.87, 665,399.76 and 275,444.45

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Solution

The fourth proportional to 482,157.87, 665,399.76 and 275,444.45 is: 380,125.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,157.87 : 665,399.76 = 275,444.45 : x
  2. Step 2: Convert to fraction form
    482,157.87/665,399.76 = 275,444.45/x
  3. Step 3: Cross multiply
    482,157.87x = 665,399.76 × 275,444.45
  4. Step 4: Simplify right side
    482,157.87x = 183,280,670,608.04
  5. Step 5: Solve for x
    x = 183,280,670,608.04/482,157.87
  6. Step 6: Final answer
    x = 380,125.85

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1.5x scale

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.