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Finding the Fourth Proportional to 450,691.64, 621,961.84 and 246,739.16

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Solution

The fourth proportional to 450,691.64, 621,961.84 and 246,739.16 is: 340,504.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,691.64 : 621,961.84 = 246,739.16 : x
  2. Step 2: Convert to fraction form
    450,691.64/621,961.84 = 246,739.16/x
  3. Step 3: Cross multiply
    450,691.64x = 621,961.84 × 246,739.16
  4. Step 4: Simplify right side
    450,691.64x = 153,462,343,816.98
  5. Step 5: Solve for x
    x = 153,462,343,816.98/450,691.64
  6. Step 6: Final answer
    x = 340,504.08

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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.