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Finding the Fourth Proportional to 720,168.12, 1,080,383.40 and 246,901.32

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Solution

The fourth proportional to 720,168.12, 1,080,383.40 and 246,901.32 is: 370,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,168.12 : 1,080,383.40 = 246,901.32 : x
  2. Step 2: Convert to fraction form
    720,168.12/1,080,383.40 = 246,901.32/x
  3. Step 3: Cross multiply
    720,168.12x = 1,080,383.40 × 246,901.32
  4. Step 4: Simplify right side
    720,168.12x = 266,748,087,566.09
  5. Step 5: Solve for x
    x = 266,748,087,566.09/720,168.12
  6. Step 6: Final answer
    x = 370,396.97

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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.