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Finding the Fourth Proportional to 388,635.64, 582,953.45 and 151,812.23

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Solution

The fourth proportional to 388,635.64, 582,953.45 and 151,812.23 is: 227,718.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,635.64 : 582,953.45 = 151,812.23 : x
  2. Step 2: Convert to fraction form
    388,635.64/582,953.45 = 151,812.23/x
  3. Step 3: Cross multiply
    388,635.64x = 582,953.45 × 151,812.23
  4. Step 4: Simplify right side
    388,635.64x = 88,499,459,556.87
  5. Step 5: Solve for x
    x = 88,499,459,556.87/388,635.64
  6. Step 6: Final answer
    x = 227,718.33

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1.5x scale

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.