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Finding the Fourth Proportional to 330,662.02, 456,349.26 and 187,406.68

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Solution

The fourth proportional to 330,662.02, 456,349.26 and 187,406.68 is: 258,641.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,662.02 : 456,349.26 = 187,406.68 : x
  2. Step 2: Convert to fraction form
    330,662.02/456,349.26 = 187,406.68/x
  3. Step 3: Cross multiply
    330,662.02x = 456,349.26 × 187,406.68
  4. Step 4: Simplify right side
    330,662.02x = 85,522,899,737.06
  5. Step 5: Solve for x
    x = 85,522,899,737.06/330,662.02
  6. Step 6: Final answer
    x = 258,641.44

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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.