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Finding the Fourth Proportional to 322,012.40, 483,018.60 and 164,548.40

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Solution

The fourth proportional to 322,012.40, 483,018.60 and 164,548.40 is: 246,822.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,012.40 : 483,018.60 = 164,548.40 : x
  2. Step 2: Convert to fraction form
    322,012.40/483,018.60 = 164,548.40/x
  3. Step 3: Cross multiply
    322,012.40x = 483,018.60 × 164,548.40
  4. Step 4: Simplify right side
    322,012.40x = 79,479,937,800.24
  5. Step 5: Solve for x
    x = 79,479,937,800.24/322,012.40
  6. Step 6: Final answer
    x = 246,822.60

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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.