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Finding the Fourth Proportional to 517,458.54, 714,099.55 and 284,912.53

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Solution

The fourth proportional to 517,458.54, 714,099.55 and 284,912.53 is: 393,183.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,458.54 : 714,099.55 = 284,912.53 : x
  2. Step 2: Convert to fraction form
    517,458.54/714,099.55 = 284,912.53/x
  3. Step 3: Cross multiply
    517,458.54x = 714,099.55 × 284,912.53
  4. Step 4: Simplify right side
    517,458.54x = 203,455,906,964.83
  5. Step 5: Solve for x
    x = 203,455,906,964.83/517,458.54
  6. Step 6: Final answer
    x = 393,183.01

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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.