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Finding the Fourth Proportional to 329,124.40, 493,492.20 and 171,660.40

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Solution

The fourth proportional to 329,124.40, 493,492.20 and 171,660.40 is: 257,389.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,124.40 : 493,492.20 = 171,660.40 : x
  2. Step 2: Convert to fraction form
    329,124.40/493,492.20 = 171,660.40/x
  3. Step 3: Cross multiply
    329,124.40x = 493,492.20 × 171,660.40
  4. Step 4: Simplify right side
    329,124.40x = 84,713,068,448.88
  5. Step 5: Solve for x
    x = 84,713,068,448.88/329,124.40
  6. Step 6: Final answer
    x = 257,389.21

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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.