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Finding the Fourth Proportional to 306,224.16, 459,234.18 and 128,698.08

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Solution

The fourth proportional to 306,224.16, 459,234.18 and 128,698.08 is: 193,004.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,224.16 : 459,234.18 = 128,698.08 : x
  2. Step 2: Convert to fraction form
    306,224.16/459,234.18 = 128,698.08/x
  3. Step 3: Cross multiply
    306,224.16x = 459,234.18 × 128,698.08
  4. Step 4: Simplify right side
    306,224.16x = 59,102,557,236.37
  5. Step 5: Solve for x
    x = 59,102,557,236.37/306,224.16
  6. Step 6: Final answer
    x = 193,004.23

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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.