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Finding the Fourth Proportional to 332,098.40, 458,157.12 and 217,405.12

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Solution

The fourth proportional to 332,098.40, 458,157.12 and 217,405.12 is: 299,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,098.40 : 458,157.12 = 217,405.12 : x
  2. Step 2: Convert to fraction form
    332,098.40/458,157.12 = 217,405.12/x
  3. Step 3: Cross multiply
    332,098.40x = 458,157.12 × 217,405.12
  4. Step 4: Simplify right side
    332,098.40x = 99,605,703,652.45
  5. Step 5: Solve for x
    x = 99,605,703,652.45/332,098.40
  6. Step 6: Final answer
    x = 299,928.29

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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.