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Finding the Fourth Proportional to 330,002.45, 455,403.57 and 179,099.45

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Solution

The fourth proportional to 330,002.45, 455,403.57 and 179,099.45 is: 247,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,002.45 : 455,403.57 = 179,099.45 : x
  2. Step 2: Convert to fraction form
    330,002.45/455,403.57 = 179,099.45/x
  3. Step 3: Cross multiply
    330,002.45x = 455,403.57 × 179,099.45
  4. Step 4: Simplify right side
    330,002.45x = 81,562,528,915.04
  5. Step 5: Solve for x
    x = 81,562,528,915.04/330,002.45
  6. Step 6: Final answer
    x = 247,157.34

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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.